unwisest (adjective) unwise: stupid, irresponsible
Sinonime: childish, foolhardy,
foolish, ill-advised, ill-considered,
immature, impolitic, improvident,
imprudent, inadvisable,
inane,
inappropriate, indiscreet,
inept, injudicious,
misguided,
naive,
rash,
reckless,
senseless, short-sighted,
silly,
thoughtless,
undesirable,
unfortunate,
unintelligent, unsound, witless
Antonime: responsible,
sagacious,
thoughtful,
wise