unintelligent
Lacking mental acuity
Unintelligent describes someone or something lacking intelligence or mental sharpness.
The word is a straightforward negation of intelligent, typically applied to people, decisions, or remarks: an unintelligent response to a simple question.
It's less harsh than stupid but still critical—implying dullness rather than outright foolishness.
Low in light
- denseClosely packed together
- obtuseLacking mental sharpness
- thickHaving great depth
- dopeyStupidly slow, half-asleep
dull · dimwitted · slow-witted · doltish · brainless · mindless · witless · vacuous
Foolish, senseless person
- moronWitless, dense person
- imbecileProfoundly stupid person
- foolUnwise, gullible person
- dunceSlow-witted person
dullard · simpleton · halfwit · nitwit · dimwit · numbskull · blockhead · bonehead
Lacking formal instruction
- unlearnedLacking acquired knowledge
- unschooledLacking formal instruction
- untutoredWithout formal instruction
- illiterateCannot read or write
unenlightened · unknowledgeable · uninstructed · benighted · nescient · unversed · uninitiated · nonliterate
Easily deceived
- credulousProne to blind trust
- unsophisticatedLacking refinement or complexity
- simpleFree of complexity
- ingenuousInnocently frank and trusting
green · callow · unworldly · innocent · trusting · impressionable · unseasoned · wet-behind-the-ears
In a confused state
- befuddledMentally confused, disoriented
- addledConfused, unable to focus
- muddleheadedLacking mental clarity
- befoggedMade unclear or dim
fuzzy-headed · scatter-brained · dazed · foggy · mixed-up · disoriented · spaced-out · woolly-headed
dim
Low in light
dopey · dull · dimwitted · slow-witted · doltish · brainless · mindless · witless · vacuous · foolish
idiot
Foolish, senseless person
dunce · dullard · simpleton · halfwit · nitwit · dimwit · numbskull · blockhead · bonehead · dolt
uneducated
Lacking formal instruction
- unlearnedLacking acquired knowledge
- unschooledLacking formal instruction
- untutoredWithout formal instruction
illiterate · unenlightened · unknowledgeable · uninstructed · benighted · nescient · unversed · uninitiated · nonliterate · unlettered
gullible
Easily deceived
- credulousProne to blind trust
- unsophisticatedLacking refinement or complexity
- simpleFree of complexity
ingenuous · green · callow · unworldly · innocent · trusting · impressionable · unseasoned · wet-behind-the-ears · wide-eyed
muddled
In a confused state
- befuddledMentally confused, disoriented
- addledConfused, unable to focus
- muddleheadedLacking mental clarity
befogged · fuzzy-headed · scatter-brained · dazed · foggy · mixed-up · disoriented · spaced-out · woolly-headed
- mindlessbrainless, mindless, witless, senseless, unthinking