epochal

[ ep-uh-kuhl or, especially British, ee-po- ]
See synonyms for epochal on Thesaurus.com
adjective
  1. of, relating to, or of the nature of an epoch.

  2. extremely important, significant, or influential.

Origin of epochal

1
First recorded in 1675–85; epoch + -al1

Other words from epochal

  • ep·och·al·ly, adverb
  • non·ep·och·al, adjective
  • pre·ep·och·al, adjective
  • un·ep·och·al, adjective

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