Epochal
ahd-5
adjective.
Of or characteristic of an epoch.
adjective.
undefined
adjective.
Highly significant or important; momentous.
adjective.
Without parallel.
The Century Dictionary and Cyclopedia
Belonging to an epoch; of the nature of an epoch; relating to epochs; marking an epoch.
the GNU version of the Collaborative International Dictionary of English
adjective.
Belonging to an epoch; of the nature of an epoch.
Wiktionary, Creative Commons Attribution/Share-Alike License
adjective.
of or pertaining to an
epoch
adjective.
highly
important
or
significant
; monumentous,
epoch-making
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
highly significant or important especially bringing about or marking the beginning of a new development or era
Word Usage
"Clement Nyirenda also remarks on how the punditry got it wrong, and finds the voting pattern for the incumbent president's win epochal:"