en.wiktionary.orgobviousness - Wiktionary, the free dictionary From Wiktionary, the free dictionary From obvious + -ness. (UK) IPA(key): /ˈɒ(b)viəsnɪs/, /-ɪəs-/, /-nəs/ (US) IPA(key): /ˈɑ(b)viəsnɪs/, /-nəs/ obviousness (countable and uncountable, plural obviousnesses) The characteristic of being obvious.