Synonyms for "half-brained" (136 found)

Ranked by relevance and common usage.

Closest matches (28)

Adjective(28 words)

harebrainedaddlebrainedaddlepatedairheadedass-brainedbaby-brainedbee-brainedbeef-wittedbeefheadedbeetle-headedbirdbrainedblockheadedboeotianboneheadedboobilyboobyboofheadedbrainlessbubbleheadedbuffle-headed

Show 8 more words

bullet-headedcerebrally challengedchildishchowderheadedchuckleheadedcrackbrainedcretinousdateless

Strong matches (40)

Adjective(40 words)

densedenteddimdim-bulbdim-headeddim-witteddoltishdopeydozydrowsydulldull-headeddull-mindeddull-witteddumbdumb as a bag of hammersdumb as a box of rocksdumb as a doorknobdumb as a postdumb as a sack of hammers

Show 20 more words

dumb as an oxdumb as dirtdumber than a box of rocksdumber than a rockdunderheadedempty-headedfatheadedfatuousfeeble-mindedflea-brainedfoolishfuckwittedfuzzy-headedfuzzy-mindedhalf-wittedhammer-headedhare-brainedheadassidioticimbecilic

Related words (68)

Adjective(68 words)

inaneinsipidintellectually challengedjolterheadedknuckleheadedlacklusterlamebrainedlowbrowlumpishlunkheadedmeatheadedmentally challengedmentally retardedmindlessmonosynapticmoronicmuttonheadednittynitwittednot the sharpest crayon in the box

Show 48 more words

not the sharpest knife in the drawernot the sharpest tool in the shednumbskulledoafishobtusepeabrainedprattypudding-headedpuerilepurblindquarter-wittedretardedrockheadedsharp as a bowling ballsheep-headedshit-for-brainssimpleslowslow on the uptakeslow-wittedsluggishsmooth-brainedstolidstupidthickthick as a brickthick as a plankthick as a whale omelettethick as champthick as mincethick as pig shitthick as two short planksthick-skulledthickheadedthickwittedunapprehensiveuncleverunderbrainedunintelligentunsmartvacantvacuouswitlesswooden-headedwoodenheadedwool-headedwoolly-headedwoolly-minded

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

2 relation types

Related terms

2 entries

half a brainhalf a head

coordinate

2 entries

half-assedhalf-hearted

Sample sentences

1 total sentences available.

Tatoeba + Wiktionary

The manager's half-brained plan led to disaster when carried out.

Source: wiktionary

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.