adjadj.allconcerned with work or important matters rather than play or trivialitiesAttributes:earnestness serious-mindedness seriousness sincerity
Examples:- a serious student of history
- a serious attempt to learn to ski
- gave me a serious look
- a serious young man
- are you serious or joking?
- Don't be so serious!
Antonyms:frivolous
Derivationally Related Form:seriousness
Inherited Hypernyms:serious
Similar to:earnest sincere solemn grave sedate sober solemn overserious real sobering solid serious-minded thoughtful
adj satadj.allof great consequenceExamples:- marriage is a serious matter
Antonyms:unimportant
Derivationally Related Form:seriousness
Inherited Hypernyms:serious
Similar to:important of import
adj satadj.allcausing fear or anxiety by threatening great harmSynset:dangerous grave grievous life-threatening severe
Examples:- a dangerous operation
- a grave situation
- a grave illness
- grievous bodily harm
- a serious wound
- a serious turn of events
- a severe case of pneumonia
- a life-threatening disease
Antonyms:noncritical
Derivationally Related Form:seriousnessdangerousnesssevereness
Inherited Hypernyms:dangerous
Similar to:critical
adj satadj.allappealing to the mindSynset:good
Antonyms:nonintellectual
Derivationally Related Form:goodness
Inherited Hypernyms:good
Similar to:intellectual
adjadj.allcompletely lacking in playfulnessAttributes:fun playfulness
Synset:sober unplayful
Antonyms:playful
Derivationally Related Form:seriousnesssoberness
Inherited Hypernyms:unplayful
adj satadj.allrequiring effort or concentration; complex and not easy to answer or solveExamples:- raised serious objections to the proposal
- the plan has a serious flaw
Antonyms:easy
Inherited Hypernyms:serious
Similar to:difficult hard