← BackshareGuessbairnish/ˈbɛrnɪʃ/adjectiveChildish; characteristic of or suitable for a child.His bairnish excitement over the new toy made everyone smile.She spoke with a bairnish lisp that reminded me of her younger years.The old man had a bairnish delight in simple pleasures.SynonymschildlikechildishyouthfulAntonymsmatureadult