English Reference
adjective

ignorant

adj.
US /ˈɪɡnɝənt/ UK /ˈɪɡnəɹənt/ ig·no·rant

  1. 01 B2 Upper Intermediate

    not knowing about something or lacking education in a specific area.

    destitute of knowledge or education; lacking information regarding a specific subject.

    Simple

    Many people are ignorant of the new tax laws that were passed last year.

    In context

    The public remains largely ignorant of the complex geopolitical factors that precipitated the current energy crisis.

    Usage

    Often followed by the preposition 'of'.

    Pitfall
    He is ignorant about the law. He is ignorant of the law.

    While 'about' is sometimes used, 'ignorant of' is the standard prepositional pairing for this sense.

  2. 02 C1 Advanced InformalDialect

    behaving in a way that is rude, impolite, or shows a lack of respect.

    displaying a lack of manners or social grace; discourteous.

    Simple

    It was very ignorant of him to interrupt the speaker in the middle of a sentence.

    In context

    The customer's ignorant behaviour toward the waitstaff caused a significant disturbance in the dining room.

    Teacher's tip

    In many dialects, particularly in British and Irish English, this is a very common way to call someone rude rather than just uninformed.

    rudeimpolitecrude

From Old French ignorant, from Latin ignōrāns (“unaware, unknowing”). By surface analysis, ignore + -ant.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin ignōrāns
Level B2 · Upper Intermediate
Frequency Common
Updated