Đồng nghĩa của extremely foolish

insane stupid preposterous senseless nonsensical absurd bizarre fatuous silly daft foolish idiotic asinine crazy inane pointless farcical irrational laughable ludicrous mad ridiculous weird imbecilic implausible impracticable mindless moronic untenable balmy brainless bubbleheaded cockeyed crackpot cuckoo daffy dippy dotty fanciful fantastic fantastical featherheaded fool harebrained illogical impractical inept irresponsible jerky kookie kooky looney loony lunatic lunkheaded nutty potty sappy screwball simpleminded slang tomfool unreal unrealistic unreasonable unthinkable unwise wacky whacky wild witless zany barmy half-baked ill-conceived half-witted hare-brained cock-eyed weak-minded off beam way out full of holes stupidly irresponsible strange odd cockamamie risible screwy eccentric unintelligent imprudent off the wall peculiar batty crackbrained dumb comical outrageous unbelievable foolhardy cockamamy unusual injudicious dopey off-the-wall grotesque wacko loopy empty-headed ill-advised outlandish incredible goofy queer extraordinary doltish incongruous demented damfool dim-witted oddball chowderheaded dotish glaikit puerile cretinous dim funny giddy simple dunderheaded derisory thickheaded gormless birdbrained unsound madcap unstable ill-considered pea-brained cranky extravagant wooden-headed curious imbecile unconventional deranged reckless unhinged rash scatty cracked incautious thoughtless nuts indiscreet halfwitted erratic thick shocking astonishing feebleminded lamebrained derisive boneheaded derisible pathetic divvy slow-witted out to lunch dof vacuous meaningless quirky mental crazed inconsistent unbalanced offbeat bonkers remarkable crackers muttonheaded chuckleheaded monstrous surreal singular loco gaga weak scatterbrained bats freaky fat-headed brain-dead blockheaded maniacal delirious dull feather-brained infantile far-fetched whimsical unique amazing flakey unworkable gonzo dozy flaky inconceivable unjustifiable freakish rum mystifying unscientific unreasoning abnormal unthinking baffling puzzling out there up the pole kinky nonrational outré groundless funky off the air pinheaded weirdo uncommon softheaded far-out aberrant disturbed touched spaced-out short-sighted off-kilter psycho psychotic whacko out-of-the-way certifiable fruity distracted haywire psychopathic nutsy meshuga clownish simple-minded invalid slow hilarious impolitic fallacious comic feeble-minded round the bend distraught phenomenal not all there idiosyncratic childish non compos mentis raving unlikely incorrect faulty improbable braindead doolally impossible bewildering squirrelly specious off-centre extreme dubious flawed dense wrong doubtful unreasoned not the full shilling rare illegitimate inconsequent inconsequential unfounded grandiose immature unorthodox off your trolley unimaginable flighty sophistic incoherent off the rails bizarro ignorant contradictory way-out dappy quaint nerdy unearthly uncustomary bugged out atypical droll in left field unfamiliar queerish uncanny unexpected freak unaccustomed make-believe out of sight dead from the neck up without foundation without basis not making sense off your head pie-faced out of the ordinary thick-witted bathetic clock incomprehensible clueless defective unsafe unpractical rattlebrained unsteady heedless changeable careless off the beam ornate imaginative exotic avant-garde mentally incompetent frivolous excessive amusing light-hearted alternative exorbitant waggish chucklesome diverting dimwitted soft contemptible baseless arbitrary fancy creative original callow burlesque unaware insipid insensate complacent idiotish goofy loony credulous retarded green foolheaded mercurial dilly reasonless disconnected disjointed nitwitted sublime gelastic smoothbrained too much wackadoodle nonconformist crazy-ass wackadoo dopy joshing humorous camp witty campy far out worthy of scorn berserk dreamlike quixotic inexperienced taking the cake Gothic gothic baroque Boeotian donkeyish obstinate very stupid smooth-brained disordered irregular perplexing sheepheaded muddle-headed not well thought out ill-thought-out dull-witted dunce-like sick dope backward unaccountable out of the question unglued inexplicable flipped schizo vapid as thick as two short planks feather-headed wet behind the ears mysterious deviant bovine pig-ignorant excellent outre daggy beyond all reason bird-brained out of all reason inappropriate off your chump out of the way off-beat left-field brainsick maniac wud bedlam meshugge bughouse moonstruck ill looney tunes slow on the uptake thick as two short planks bedlamite not quite right loony tunes fried soft in the head imaginary exceptional unconvincing illusory incredulous very good spurious unconceivable misleading romantic capricious ambitious visionary uncompelling artificial in the ozone unjustified erroneous surprising illusive suppositious different hallucinatory sensational astounding out of one's gourd inconclusive stunning notable striking momentous prodigious miraculous sophistical unforgettable eye-catching arresting frenzied special spectacular stupendous unwonted noteworthy conspicuous sectionable casuistic unproved bananas cock-and-bull exceeding extraordinaire unprecedented serious especial eye-popping unco preternatural aberrated anomalous tremendous wondrous frantic manic barking hysterical nutso buggy amazeballs perverse false irrelevant unconnected irreconcilable self-contradictory unsubstantial beyond belief hollow schizoid heavy flash gnarly forby bushed porangi yarra off beaten path never to be forgotten unheard-of out of this world twisted mentally ill not following of unsound mind raving mad sick in the head mad as a hatter not together stark mad stark raving mad away with the fairies nutty as a fruitcake beyond the bounds of possibility barking mad foaming at the mouth mad as a March hare round the twist stark staring mad not right in the head not quite right in the head not right upstairs as daft as a brush have a screw loose have bats in the belfry have kangaroos in the top paddock mentally unbalanced out of one's head

extremely frugal extremely good extremely handy extremely happy extremely helpful extremely high extremely focused extremely fast extremely enthusiastic extremely enjoyable extremely doubtful extremely difficult to believe