unavoidable

From Middle English unavoidable, equivalent to un- +‎ avoidable.

• IPA^(key): /ˌʌnəˈvɔɪdəbəl/

• Audio (Southern England):

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unavoidable (comparative more unavoidable, superlative most unavoidable)

1. Impossible to avoid; bound to happen.

   an unavoidable urge

2. (law) Not voidable; incapable of being made null or void.
   • 1765–1769, William Blackstone, Commentaries on the Laws of England, (please specify |book=I to IV), Oxford, Oxfordshire: […] Clarendon Press, →OCLC:

     A confirmation is allied to a release, being a conveyance of an estate or right in esse whereby a voidable estate is made unavoidable

• See usage notes at inevitable.

• (impossible to avoid): inescapable, inevitable

• (antonym(s) of “impossible to avoid”): avoidable

unavoidable (plural unavoidables)

1. Something that cannot be avoided.
   • 1825, The London magazine, volume 12, page 490:

     Forty years before, I had thought this odour one of the necessities of life — one of the unavoidables at least […]