English edit

Etymology edit

un- +‎ customary

Adjective edit

uncustomary (comparative more uncustomary, superlative most uncustomary)

  1. Not customary.
    • 2021, Colson Whitehead, Harlem Shuffle, Fleet, page 288:
      He had kept it cryptic on the phone; that plus the uncustomary afternoon meeting would warn the jeweler that it was serious.