epochal
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ep·och·al
(ĕp′ə-kəl, -ŏk′əl)adj.
1. Of or characteristic of an epoch.
2.
a. Highly significant or important; momentous: epochal decisions made by Roosevelt and Churchill.
b. Without parallel: epochal stupidity.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ep•och•al
(ˈɛp ə kəl; esp. Brit. ˈi pɒ-)adj.
1. of, pertaining to, or of the nature of an epoch.
2. extremely important, significant, or influential.
[1675–85]
ep′och•al•ly, adv.
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Adj. | 1. | epochal - highly significant or important especially bringing about or marking the beginning of a new development or era; "epochal decisions made by Roosevelt and Churchill"; "an epoch-making discovery" significant, important - important in effect or meaning; "a significant change in tax laws"; "a significant change in the Constitution"; "a significant contribution"; "significant details"; "statistically significant" |
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