Difference between Unintelligent and Imbecile

UNINTELLIGENT vs IMBECILE: NOUN

One who is imbecile.
A person of moderate to severe mental retardation having a mental age of from three to seven years and generally being capable of some degree of communication and performance of simple tasks under supervision. The term belongs to a classification system no longer in use and is now considered offensive.
A person who is considered foolish or stupid.
A person of subnormal intelligence
One destitute of strength; esp., one of feeble mind; -- sometimes used as a pejorative term.
A person with a degree of mental retardation between that of an idiot and a moron; in a former classification of mentally retarded person, it applied to a person with an adult mental age of from four to eith years, and an I.Q. of from 26 to 50.
A person with limited mental capacity who can perform tasks and think only like a young child, in medical circles meaning a person who lacks the capacity to develop beyond the mental age of a normal five to seven-year-old child.
A fool, an idiot.

Having a mental age of three to seven years
Destitute of strength, whether of body or mind; feeble; impotent; esp., mentally wea; feeble-minded.

To make imbecile; weaken.
Synonyms and Foolish, driveling, idiotic. See debility.
Marked by mental feebleness or incapacity; indicating weakness of mind; inane; stupid: as, imbecile efforts; an imbecile speech.
Mentally feeble: fatuous; having the mental faculties undeveloped or greatly impaired. See imbecility.
Without physical strength; feeble; impotent; helpless.
To embezzle.

Uninformed, Idiotic, Dumb, Uneducated, Ignorant, Unwise, Slow witted, Half witted, Headless, Feebleminded, Imbecile, Imbecilic, Brainless, Moronic, Stupid

Idiotic, Putz, Dumbass, Nutcase, Twit, Jackass, Lunatic, Half wit, Changeling, Retard, Unintelligent, Stupid, Cretin, Idiot, Moron

Uninformed, Idiotic, Dumb, Uneducated, Ignorant, Unwise, Slow witted, Half witted, Headless, Feebleminded, Imbecile, Imbecilic, Brainless, Moronic, Stupid

Douche, Idiotic, Putz, Dumbass, Nutcase, Twit, Jackass, Lunatic, Changeling, Retard, Unintelligent, Stupid, Cretin, Idiot, Moron

Goodnatured and listless, unintelligent, but easy to manage in school.
He was difficult, arrogant, mannerless, foul-mouthed and extremely unintelligent.
Buying with no prescription also through the unintelligent Darwinian apotheosis.
Republicans said Democrats were immoral, lazy, dishonest, and unintelligent.
See more words with the same meaning: unintelligent, dumb.
Failing does not mean you are incapable or unintelligent.
It is just about faking unintelligent people like you.
Dull, stupid, stolid, doltish, blockish, obtuse, unintelligent, unintellectual.
Corrupt, unintelligent, biased people can make valid arguments.
Why continue to treat them like unintelligent children?