foolishest
Least sensible choice
Foolishest is the superlative form of foolish, meaning most foolish.
The word is grammatically correct but sounds archaic or deliberately playful—most foolish is now standard in formal contexts.
Writers sometimes choose foolishest for comic effect or to echo older literary styles: That was the foolishest thing I ever did.
Completely contrary to reason
- ridiculousInviting scorn through absurdity
- ludicrousAbsurdly unreasonable or inappropriate
- outrageousShockingly bad or excessive
- nonsensicalWithout coherent meaning
inane · harebrained · far-fetched · impractical · unrealistic · illogical · irrational · cockamamie
Lacking careful forethought
- ill-advisedShowing poor judgment
- misguidedBased on poor judgment
- injudiciousShowing poor judgment
- shortsightedUnable to see ahead
naive · ill-conceived · impolitic · indiscreet · senseless · witless · dim-witted · obtuse
Acting without deliberation
- recklessCarelessly ignoring danger
- heedlessCareless of consequences
- impetuousActing on sudden urge
- hastyExcessively quick, ill-considered
careless · thoughtless · irresponsible · daredevil · brash · audacious · harum-scarum · madcap
preposterous
Completely contrary to reason
- ridiculousInviting scorn through absurdity
- ludicrousAbsurdly unreasonable or inappropriate
- outrageousShockingly bad or excessive
nonsensical · inane · harebrained · far-fetched · impractical · unrealistic · illogical · irrational · cockamamie · crackpot
imprudent
Lacking careful forethought
- ill-advisedShowing poor judgment
- misguidedBased on poor judgment
- injudiciousShowing poor judgment
shortsighted · naive · ill-conceived · impolitic · indiscreet · senseless · witless · dim-witted · obtuse · dense
impulsive
Acting without deliberation
hasty · careless · thoughtless · irresponsible · daredevil · brash · audacious · harum-scarum · madcap · hotheaded
buffoon
Ludicrous, clumsy fool
farce · parody · jest · gag · dunce · nincompoop · simpleton · tomfoolery · absurdist · zany