Synonyms of barmy

2 Syllables
foamier, loonier, crazier, frothier, frothy, screwy, apest, foolish, loco, spumous, spumy, sudsy, aper, loony, flighty, craziest, foamy, crazy
3 Syllables
frivolous, light-minded, nonserious, lathery
4 Syllables
harebrained