nicety /ˈnaɪsɪti/noun 5adjective 1forms 1phrases 1 noun5 •A small detail or distinction.We met the new captain while we were taking enemy fire and were unable to observe the niceties of formal introductions. •Synonym of social nicety.Both anthems were booed beforehand. It was never going to be a night for niceties. — 2024 •Subtlety or precision of use; exactness; preciseness.A rocket-propelled grenade doesn't have the nicety of a sniper round, but you must admit its effectiveness. •A delicacy of character or feeling usually from excessive refinement; fastidiousness. •(no longer used) That which is delicate to the taste. adjective1 •Behaving in an unpleasant or spiteful way that is seemingly, or perceived as, pleasant or agreeable. formsniceties Phrases with nicety to a nicetyTo a fine point, with great exactness or accuracy.