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most serious
adjective as in somber, humorless
Strongest matches
Strong match
adjective as in crucial, weighty
Strongest matches
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On this page you'll find 212 synonyms, antonyms, and words related to serious, such as: deliberate, genuine, honest, severe, sincere, and thoughtful.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
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