All centennial antonyms
cen·ten·ni·al
C c noun centennial
- concealment — Concealment is the state of being hidden or the act of hiding something.
- hiding — the pelt or skin of one of the larger animals (cow, horse, buffalo, etc.), raw or dressed.
adj centennial
- infrequent — happening or occurring at long intervals or rarely: infrequent visits.
- unusual — not usual, common, or ordinary; uncommon in amount or degree; exceptional: an unusual sound; an unusual hobby; an unusual response.
- continual — A continual process or situation happens or exists without stopping.
- lasting — continuing or enduring a long time; permanent; durable: a lasting friendship.
- permanent — existing perpetually; everlasting, especially without significant change.
- sporadic — (of similar things or occurrences) appearing or happening at irregular intervals in time; occasional: sporadic renewals of enthusiasm.
- variable — apt or liable to vary or change; changeable: variable weather; variable moods.
- constant — You use constant to describe something that happens all the time or is always there.
- irregular — without symmetry, even shape, formal arrangement, etc.: an irregular pattern.