keeping forever (verb) memorize: remember
Sinonime: absurd,
asinine, barmy,
bizarre,
careless,
changeable,
crazy, dizzy*, empty-headed, featherbrained, flighty,
foolish,
frivolous, giddy, half-baked,
heedless, inane,
irresponsible, loony,
mindless,
preposterous,
rash, rattlebrained,
reckless, scatterbrained,
unstable, unsteady,
wacky*,
wildAntonime: brainy,
intelligent,
reasonable,
sensible,
smart,
thoughtful