Thesaurus.com
synonyms
  • definitions

most serious

see definition of most serious
  • adjsomber, humorless
  • adjcrucial, weighty
Relevance ranks synonyms and suggests the best matches based on how closely a synonym’s sense matches the sense you selected.
Relevance
A-Z
Length
-
+

Synonyms for most serious

adj somber, humorless

Antonyms for most serious

  • deceptive
  • dishonest
  • false
  • insincere
  • misleading
  • untrustworthy
  • flippant
  • funny
  • happy
  • light
  • minor
  • trivial
  • unimportant
  • unserious
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.