Otiose

Part of speech: adjective

Pronunciation: /ˈəʊ.ʃi.əʊs/

Definitions

1. Serving no practical purpose or producing no useful result; functionless and ineffective
2. Lacking any practical value or functional effect
3. futile and pointless

Etymology: Latin "ōtium" meant "ease" or leisure, and the adjective "ōtiōsus" built on it described someone who was idle, at leisure, with nothing to do. English borrowed the word in that sense, so "otiose" originally described a person at rest rather than someone being useless. The shift from leisure to futility is the heart of the story: a person with free time and no obligations drifted, in English usage, toward a thing that accomplished nothing. The modern sense, something superfluous or serving no purpose, grew out of that idleness. An action that does no work is essentially an idle action, and the adjective came to describe gestures, remarks, and efforts that go nowhere. The Latin root "ōtium" also gave English the word "negotiate," which originally meant to carry on business, the opposite of leisure, so the two words share an ancestor that points in opposite directions.

Synonyms: useless, ineffective, futile, unnecessary, idle

Antonyms: useful, effective, necessary, productive, valuable