Epochal

/[ˈɛ.pək.əl]/ adj

adj ·Uncommon ·Advanced level

Definitions

Adjective
  1. 1
    Of or pertaining to an epoch.
  2. 2
    Highly important or significant; monumental, epoch-making. figuratively

    "But they were the great epochal design; their influence on locomotive development is felt to this day and their niche in railway history is secure."

Adjective
  1. 1
    highly significant or important especially bringing about or marking the beginning of a new development or era wordnet

Synonyms

All synonyms
alternatebeatingcirclingconsequentialcycliccyclical

Example

More examples

"The fall of the Berlin Wall was really an epochal event."

Etymology

From epoch + -al.

Related phrases

epoch making

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.