Umptieth

adj, slang

Definitions

Adjective
  1. 1
    A generic ordinal number; a last or one of the latest in a long series; implies repetition. informal, not-comparable

    "After he retied the knot for the umptieth time, he finally figured out how to make it stay tied."

Adjective
  1. 1
    last in an indefinitely numerous series wordnet

Etymology

From umpty + -eth.

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