adj · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
rhymes with -ɪə(ɹ)
Southern-England:Recorded audio is listed in the source snapshot.
CMU ARPABET:IH2 N S IH0 N S IH1 R
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Not genuinely meaning what has been expressed; not sincere; artificial; factitious.
Definition source: English Wiktionary via Wiktextract
Examples
Janice's furious glare showed that her apology was insincere.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adjective
Meaning 2
lacking sincerity
Definition source: Princeton WordNet 3.0
Examples
a charming but thoroughly insincere woman
their praise was extravagant and insincere
Meaning relationships
Synonyms: none provided
Antonyms: sincere
History
Etymology
From Latin insincerus.
Across languages
Translations
27 source translations are retained for this English entry.