Illegitimate
Illegitimate adjective - Born to a father and mother who are not married.
Official is an antonym for illegitimate.
Nearby Words: illegitimacy, illegitimately
Official
Official adjective - Ordered or allowed by those in authority.
Usage example: the official languages for those Olympic Games were French and English
Illegitimate is an antonym for official.
Both words in one sentence
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Heroic Bastard: It's easy to forget that Alba is actually the illegitimate daughter of Pedro Tercero Garcia and Blanca Trueba, since her grandfather dotes on her and has named her his official heir.
- His illegitimate family lives in the palace, while his official one lives in an old out-of-the way manor.
Source: The Mistress - As part of the series's back story, King Aegon IV ("The Unworthy") had several semi-official mistresses, and thus several illegitimate children.
Source: The Mistress
Cite this Source
Official and Illegitimate. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/illegitimate/official
Illegitimate & Official. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/illegitimate/official>.
Official or Illegitimate. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/illegitimate/official.
Google Ngram Viewer shows how "illegitimate" and "official" have occurred on timeline