adjective Etymology: Latin ~us flat-tasting; akin to Latin vappa flat wine and perhaps to Latin vapor steam Date: circa 1656 lacking liveliness, tang, briskness, or force ; flat , dull , see: insipid ~ly adverb ~ness noun
VAPID
Meaning of VAPID in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012