1. (adj) faint, light, swooning, light-headed, lightheaded
weak and likely to lose consciousness
Synonyms: vague, light-headed, lite, wanton, wakeful, faint, lightheaded, feeble, featherbrained, low-cal, lightsome, fainthearted, light-colored, unaccented, shadowy, weak, easy, promiscuous, dim, airheaded, abstemious, unclouded, clean, timid, light(a), clear, idle, wispy, silly, faint-hearted, tripping, short, dizzy, scant(p), empty-headed, sluttish, light, swooning, calorie-free, giddy, loose
Antonyms: well, serious
2. (adj) airheaded, dizzy, empty-headed, featherbrained, giddy, light-headed, lightheaded, silly
lacking seriousness; given to frivolity
Synonyms: woozy, zany, empty-headed, silly, dizzy, wacky, ridiculous, airheaded, whacky, goofy, sappy, cockamamie, light-headed, swooning, giddy, faint, lightheaded, slaphappy, light, featherbrained, punch-drunk, vertiginous, cockamamy, pathetic
Antonyms: well, serious
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Synonyms and Antonyms of light-headed 
