[ seer-ee-uhs ]
/ ˈsɪər i əs /
of, showing, or characterized by deep thought.
of grave or somber disposition, character, or manner: a serious occasion; a serious man.
being in earnest; sincere; not trifling: His interest was serious.
requiring thought, concentration, or application: serious reading; a serious task.
weighty or important: a serious book; Marriage is a serious matter.
giving cause for apprehension; critical: The plan has one serious flaw.
Medicine/Medical. (of a patient's condition) having unstable or otherwise abnormal vital signs and other unfavorable indicators, as loss of appetite and poor mobility: patient is acutely ill.
that which is of importance, grave, critical, or somber: You have to learn to separate the serious from the frivolous.
Origin of serious
ANTONYMS FOR serious
3, 5 trivial.
OTHER WORDS FROM serious
se·ri·ous·ness, nounhalf-se·ri·ous, adjectivehalf-se·ri·ous·ly, adverbhalf-se·ri·ous·ness, noun
non·se·ri·ous, adjectivenon·se·ri·ous·ly, adverbnon·se·ri·ous·ness, nouno·ver·se·ri·ous, adjectiveo·ver·se·ri·ous·ly, adverbo·ver·se·ri·ous·ness, nounqua·si-se·ri·ous, adjectivequa·si-se·ri·ous·ly, adverbsu·per·se·ri·ous, adjectivesu·per·se·ri·ous·ly, adverbsu·per·se·ri·ous·ness, nounul·tra·se·ri·ous, adjectiveul·tra·se·ri·ous·ly, adverbul·tra·se·ri·ous·ness, nounun·se·ri·ous, adjectiveun·se·ri·ous·ly, adverbun·se·ri·ous·ness, noun
Words nearby serious
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for half serious
/ (ˈsɪərɪəs) /
grave in nature or disposition; thoughtfula serious person
marked by deep feeling; in earnest; sincereis he serious or joking?
concerned with important mattersa serious conversation
requiring effort or concentrationa serious book
giving rise to fear or anxiety; criticala serious illness
informal worthy of regard because of substantial quantity or qualityserious money; serious wine
informal extreme or remarkablea serious haircut
Derived forms of seriousseriousness, noun
Word Origin for serious
C15: from Late Latin sēriōsus, from Latin sērius; probably related to Old English swǣr gloomy, Gothic swers esteemed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for half serious
[ sîr′ē-əs ]
Being of such import as to cause anxiety, as of a physical condition.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.