1. (adj) important, of import
of great significance or value
Synonyms: authoritative, important, crucial, significant, of import
Antonyms: lightweight, immaterial, fiddling, indifferent, unimportant, uninfluential, little, piffling, piddling, modest, potty, lilliputian, inconsequent, nickel-and-dime, inconsequential, petty, small-time, footling, picayune, trivial, niggling
2. (adj) significant, important
important in effect or meaning
Synonyms: substantial, significant, meaning(a), of import, pregnant, important, authoritative, crucial
Antonyms: footling, immaterial, piffling, lilliputian, unimportant, small-time, nickel-and-dime, modest, inconsequent, little, niggling, inconsequential, fiddling, lightweight, trivial, piddling, uninfluential, indifferent, potty, petty, picayune
3. (adj) crucial, important
of extreme importance; vital to the resolution of a crisis
Synonyms: essential, all important(p), all-important(a), significant, of import, important, authoritative, crucial, of the essence(p)
Antonyms: piddling, potty, inconsequential, small-time, lightweight, trivial, fiddling, piffling, immaterial, nickel-and-dime, little, lilliputian, inconsequent, niggling, uninfluential, indifferent, modest, petty, picayune, unimportant, footling
4. (adj) authoritative, important
having authority or ascendancy or influence
Synonyms: authorised, significant, classic, authorized, of import, important, crucial, authoritative, definitive, classical
Antonyms: uninfluential, little, trivial, unimportant, footling, potty, niggling, modest, nickel-and-dime, inconsequent, picayune, small-time, piddling, inconsequential, immaterial, petty, indifferent, fiddling, lightweight, piffling, lilliputian
5. (adj) important
having or suggesting a consciousness of high position
Synonyms: authoritative, crucial, significant, of import
Antonyms: nickel-and-dime, inconsequent, small-time, inconsequential, piffling, fiddling, little, trivial, indifferent, niggling, modest, potty, footling, petty, piddling, immaterial, lilliputian, picayune, lightweight, uninfluential, unimportant
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Synonyms and Antonyms of important 
