Meaning of “ignorant” - Learner’s Dictionary

ignorant

adjective uk us /ˈɪɡnərənt/
NOT HAVING KNOWLEDGE

not having enough knowledge, understanding, or information about something:

He was a newcomer to Formula One and ignorant of many of the circuits.
NOT POLITE UK

not polite or showing respect:

an ignorant lout

(Definition of “ignorant” from the Cambridge Learner’s Dictionary © Cambridge University Press)