Definitions for ignorantˈɪg nər ənt

Random House Webster's College Dictionary

ig•no•rant^*ˈɪg nər ənt(adj.)

lacking in knowledge or training; unlearned.
lacking special knowledge or information.
uninformed; unaware.
showing lack of knowledge or training.

^* Syn: ignorant , illiterate mean lacking in knowledge or training. ignorant may mean knowing little or nothing, or it may mean uninformed about a particular subject: An ignorant person can be dangerous. I confess I'm ignorant of higher mathematics. illiterate most often means unable to read or write; however, it sometimes means not well-read or not well versed in literature: classes for illiterate soldiers; an illiterate mathematician.

Origin of ignorant:

1325–75; ME < L ignōrant-, s. of ignōrāns, prp. of ignōrāre to ignore

ig′no•rant•ly(adv.)

Princeton's WordNet

ignorant, nescient, unlearned, unlettered(adj)
uneducated in general; lacking knowledge or sophistication
"an ignorant man"; "nescient of contemporary literature"; "an unlearned group incapable of understanding complex issues"; "exhibiting contempt for his unlettered companions"
ignorant, illiterate(adj)
uneducated in the fundamentals of a given art or branch of learning; lacking knowledge of a specific field
"she is ignorant of quantum mechanics"; "he is musically illiterate"
ignorant, unknowledgeable, unknowing, unwitting(adj)
unaware because of a lack of relevant information or knowledge
"he was completely ignorant of the circumstances"; "an unknowledgeable assistant"; "his rudeness was unwitting"

Kernerman English Learner's Dictionary

ignorant(adjective)ˈɪg nər ənt
lacking knowledge or understanding
A person can be ignorant without being stupid.; people who are ignorant of what is happening in the world
ignorantˈɪg nər ənt
lacking manners
a rude, ignorant old man

Wiktionary

ignorant(Adjective)
Unknowledgeable or uneducated; characterized by ignorance.
ignorant(Adjective)
Ill-mannered, crude.
His manner was at best off-hand, at worst totally ignorant.

Webster Dictionary

Ignorant(adj)
destitute of knowledge; uninstructed or uninformed; untaught; unenlightened
Ignorant(adj)
unacquainted with; unconscious or unaware; -- used with of
Ignorant(adj)
unknown; undiscovered
Ignorant(adj)
resulting from ignorance; foolish; silly
Ignorant(noun)
a person untaught or uninformed; one unlettered or unskilled; an ignoramous