1. (adj) weak
wanting in physical strength
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: well-knit, powerful, imperceptible, stressed, ironlike, muscular, infallible, strong, industrial-strength, knock-down(a), beefed-up, strengthened, skilled, noticeable, sinewy, bullocky, smart, brawny, nonhuman, unperceivable, virile, robust, undiluted, knockout, up, hard, hefty, stiff, weapons-grade, irregular, accented, beardown(a), fortified, vehement, reinforced, bullnecked, severe, well-set
2. (adj) watery, washy, weak
overly diluted; thin and insipid
Synonyms: weak, watery, infirm, unaccented, weakly, debile, rickety, bleached, washy, faded, reeking, imperfect, washed-out, faint, decrepit, light, fallible, frail, feeble, sapless
Antonyms: knock-down(a), industrial-strength, strong, hard, powerful, nonhuman, fortified, imperceptible, up, bullocky, undiluted, stressed, skilled, robust, virile, smart, well-knit, vehement, ironlike, unperceivable, weapons-grade, brawny, knockout, sinewy, beefed-up, accented, bullnecked, hefty, strengthened, well-set, noticeable, beardown(a), infallible, reinforced, stiff, muscular, severe, irregular
3. (adj) unaccented, light, weak
(used of vowels or syllables) pronounced with little or no stress
Synonyms: light-headed, lite, wanton, sapless, wakeful, faint, lightheaded, feeble, low-cal, decrepit, watery, lightsome, debile, light-colored, unaccented, weak, weakly, easy, promiscuous, abstemious, atonic, unclouded, clean, light(a), frail, clear, idle, fallible, imperfect, infirm, tripping, short, scant(p), washy, rickety, sluttish, light, swooning, calorie-free, loose
Antonyms: hard, undiluted, bullnecked, beardown(a), well-knit, severe, knock-down(a), muscular, strengthened, fortified, imperceptible, weapons-grade, industrial-strength, brawny, infallible, beefed-up, knockout, irregular, accented, bullocky, powerful, unperceivable, strong, robust, noticeable, smart, reinforced, skilled, ironlike, virile, nonhuman, up, sinewy, hefty, well-set, stressed, vehement, stiff
4. (adj) fallible, frail, imperfect, weak
wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
Synonyms: weak, watery, infirm, unaccented, weakly, imperfect, rickety, debile, delicate, sapless, frail, washy, faint, decrepit, light, fallible, feeble, fragile
Antonyms: well-knit, weapons-grade, hefty, strong, bullocky, knock-down(a), well-set, irregular, severe, powerful, nonhuman, undiluted, noticeable, vehement, imperceptible, stressed, strengthened, beardown(a), ironlike, brawny, up, smart, accented, bullnecked, infallible, industrial-strength, reinforced, virile, muscular, sinewy, knockout, skilled, hard, fortified, stiff, robust, beefed-up, unperceivable
5. (adj) weak
tending downward in price
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: knockout, irregular, powerful, bullocky, undiluted, industrial-strength, severe, virile, muscular, accented, noticeable, infallible, strengthened, beefed-up, up, robust, hefty, bullnecked, stressed, ironlike, knock-down(a), fortified, reinforced, nonhuman, weapons-grade, smart, sinewy, vehement, well-knit, strong, stiff, beardown(a), imperceptible, hard, brawny, skilled, well-set, unperceivable
6. (adj) weak
deficient or lacking in some skill
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: skilled, brawny, beardown(a), ironlike, fortified, severe, reinforced, undiluted, irregular, industrial-strength, robust, strong, well-knit, bullocky, beefed-up, hard, up, nonhuman, smart, strengthened, powerful, muscular, vehement, well-set, knockout, stressed, infallible, sinewy, accented, unperceivable, hefty, noticeable, stiff, knock-down(a), bullnecked, virile, weapons-grade, imperceptible
7. (adj) decrepit, debile, feeble, infirm, rickety, sapless, weak, weakly
lacking bodily or muscular strength or vitality
Synonyms: weak, watery, infirm, unaccented, washy, shaky, weakly, debile, rickety, woebegone, lame, rachitic, nerveless, run-down, wonky, imperfect, creaky, faint, frail, decrepit, light, fallible, flea-bitten, wobbly, feeble, derelict, sapless
Antonyms: knock-down(a), muscular, sinewy, irregular, infallible, powerful, stiff, strengthened, beefed-up, well-knit, imperceptible, unperceivable, brawny, nonhuman, accented, bullnecked, noticeable, stressed, reinforced, vehement, skilled, severe, smart, beardown(a), bullocky, hefty, robust, hard, industrial-strength, up, strong, well-set, ironlike, weapons-grade, knockout, fortified, virile, undiluted
8. (adj) weak
(used of verbs) having standard (or regular) inflection
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: robust, hefty, noticeable, powerful, virile, stiff, well-knit, bullocky, beefed-up, vehement, strengthened, fortified, unperceivable, weapons-grade, smart, reinforced, industrial-strength, bullnecked, ironlike, irregular, stressed, undiluted, hard, up, imperceptible, skilled, beardown(a), knockout, brawny, muscular, severe, strong, knock-down(a), accented, nonhuman, well-set, sinewy, infallible
9. (adj) weak
not having authority, political strength, or governing power
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: sinewy, accented, fortified, ironlike, robust, vehement, powerful, severe, beefed-up, knock-down(a), skilled, beardown(a), well-set, industrial-strength, strong, stressed, hard, bullnecked, knockout, stiff, smart, bullocky, imperceptible, undiluted, muscular, brawny, virile, noticeable, infallible, strengthened, well-knit, irregular, weapons-grade, nonhuman, up, unperceivable, reinforced, hefty
10. (adj) faint, weak
deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc
Synonyms: weak, watery, dim, unaccented, weakly, swooning, faint, rickety, debile, vague, faint-hearted, fainthearted, washy, timid, light-headed, lightheaded, decrepit, wispy, light, shadowy, fallible, frail, feeble, imperfect, infirm, sapless
Antonyms: skilled, stressed, knock-down(a), muscular, nonhuman, weapons-grade, powerful, beardown(a), virile, imperceptible, strengthened, ironlike, vehement, bullnecked, sinewy, noticeable, robust, unperceivable, up, knockout, smart, accented, infallible, undiluted, strong, hard, severe, irregular, stiff, beefed-up, industrial-strength, hefty, well-set, reinforced, fortified, bullocky, well-knit, brawny
11. (adj) weak
likely to fail under stress or pressure
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: strengthened, weapons-grade, reinforced, muscular, powerful, undiluted, industrial-strength, stiff, unperceivable, noticeable, beardown(a), fortified, hefty, virile, vehement, well-knit, robust, brawny, ironlike, knock-down(a), stressed, nonhuman, bullnecked, irregular, well-set, infallible, severe, skilled, strong, up, beefed-up, knockout, sinewy, bullocky, hard, accented, smart, imperceptible
12. (adj) weak
deficient in intelligence or mental power
Synonyms: faint, debile, sapless, unaccented, washy, rickety, feeble, watery, light, weakly, imperfect, frail, fallible, infirm, decrepit
Antonyms: fortified, noticeable, undiluted, hefty, beefed-up, stiff, accented, smart, powerful, up, well-knit, virile, weapons-grade, robust, knockout, brawny, nonhuman, muscular, knock-down(a), industrial-strength, imperceptible, strengthened, sinewy, stressed, skilled, hard, ironlike, unperceivable, reinforced, severe, bullocky, bullnecked, strong, vehement, infallible, well-set, beardown(a), irregular
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Synonyms and Antonyms of weak 
