illegitimate

/ɪləd‍ʒˈɪtɪmət/

/ˌɪɫɪˈdʒɪtəmɪt/

illegitimate

not allowed by the law

synonyms : illicit

of marriages and offspring; not recognized as lawful

antonyms : legitimate

Illegitimate

the illegitimate offspring of unmarried parents

synonyms : bastard

Examples

1. Are these unwritten doctrines illegitimate?

2. Relations by marriage, foster children, and illegitimate siblings were all involved.

3. Now, suddenly that dress code wasn’t illegitimate.

4. Illegitimate Christmas tree ornaments.