unpretentious adj. + Add to list US //ˌənpɹiˈtɛnʃəs// UK //ʌnpɹɪtˈɛnʃəs// un·pre·ten·tious SynonymsAntonymsEtymology Synonyms understatedunostentatiousunpretending Antonyms ostentatiouspretentiousOrigin From un- + pretentious.