unintelligent

Unintelligent is a related term of dopey.

As adjectives the difference between unintelligent and dopey

is that unintelligent is not intelligent while dopey is stupid, silly.

Unintelligent is a related term of dull.

As adjectives the difference between unintelligent and dull

is that unintelligent is not intelligent while dull is lacking the ability to cut easily; not sharp.

As a verb dull is

to render dull; to remove or blunt an edge or something that was sharp.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective unintelligent is

not intelligent.

As adjectives the difference between unintelligible and unintelligent

is that unintelligible is not intelligible; unable to be understood while unintelligent is not intelligent.

As an adjective unintelligent

is not intelligent.

As a noun chickenhead is

a woman who readily performs fellatio; by extension, an unintelligent and promiscuous woman.

As an adjective unintelligent

is not intelligent.

As a noun celebutard is

(informal|pejorative|offensive|slang) a celebrity viewed as unintelligent; especially a celebrity who behaves badly in public.

As an adjective unintelligent

is not intelligent.

As a noun hosebag is

(slang) an undesirable, boorish, unintelligent, or objectionable person; often used in jest; a hoser.

As adjectives the difference between unintelligent and airheaded

is that unintelligent is not intelligent while airheaded is silly, foolish.