- lacking in knowledge or training; unlearned: an ignorant man.
- lacking knowledge or information as to a particular subject or fact: ignorant of quantum physics.
- uninformed; unaware.
- due to or showing lack of knowledge or training: an ignorant statement.
Origin of ignorant
SynonymsSee more synonyms for ignorant on Thesaurus.com
- lacking in knowledge or education; unenlightened
- (postpositive often foll by of) lacking in awareness or knowledge (of)ignorant of the law
- resulting from or showing lack of knowledge or awarenessan ignorant remark
Word Origin and History for self-ignorant
late 14c., from Old French ignorant (14c.), from Latin ignorantia, from ignorantem (nominative ignorans), present participle of ignorare "not to know, to be unacquainted; mistake, misunderstand; take no notice of, pay no attention to," from assimilated form of in- "not, opposite of" (see in- (1)) + Old Latin gnarus "aware, acquainted with" (cf. Classical Latin noscere "to know," notus "known"), from Proto-Latin suffixed form *gno-ro-, related to gnoscere "to know" (see know).
Form influenced by Latin ignotus "unknown." Cf. also uncouth. Colloquial sense of "ill-mannered" first attested 1886. As a noun meaning "ignorant person" from mid-15c.