Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “illegitimate”


adjective     /ˌɪlɪˈdʒɪtəmət/
CHILD An illegitimate child is born to parents who are not married to each other.Marital status
NOT LEGAL not legal , honest , or fair : an illegitimate use of council funds DishonestLegal and illegal
illegitimacy     /ˌɪlɪˈdʒɪtəməsi/ noun [U]
(Definition of illegitimate adjective from the Cambridge Learner's Dictionary © Cambridge University Press)

Browse related topics

You are looking at an entry to do with Legal & illegal, but you might be interested in these topics from the Law and the police topic area:

Definitions of “illegitimate” in other dictionaries

Word of the Day


relating to behaviour between people that is pleasant and friendly, often despite a difficult situation

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More