non-serious
Lacking grave intent
Not intended to be taken seriously; lighthearted, joking, or casual rather than earnest or solemn.
It was just a non-serious comment, don't read too much into it.
The term often appears in contexts distinguishing playful from genuine intent: a non-serious relationship, non-serious injuries.
The hyphenated form is standard, though some write it as one word.
Provoking laughter or suspicion
amusing · droll · tongue-in-cheek · facetious · jocular · waggish · wry · irreverent
Playfully fanciful or erratic
- mischievousPlayfully causing trouble
- frolicsomeInclined to merriment
- impishPlayfully mischievous in manner
- sportiveFond of games
prankish · frivolous · giddy · romp · lark · antics · caper · joking
Cheerful and without worry
- easygoingRelaxed in temperament
- unconcernedFeeling no worry
- blitheCheerfully indifferent
- insouciantCarefree and unconcerned
untroubled · buoyant · jaunty · breezy · cheerful · sunny · relaxed · unworried
Lacking significance or weight
- inconsequentialLacking significance or impact
- minorScale with lowered third
- lightweightLacking mass or importance
- superficialLacking depth or substance
trifling · negligible · insignificant · flimsy · shallow · insubstantial · throwaway · forgettable
Relaxed and informal
- relaxedFree of stress
- unofficialNot formally recognized
- offhandCasually unrehearsed
- unpretentiousLacking false superiority
undemanding · unfussy · low-key · leisurely · loose · unstructured · flexible · impromptu
funny
Provoking laughter or suspicion
comical · amusing · droll · tongue-in-cheek · facetious · jocular · waggish · wry · irreverent · glib
whimsical
Playfully fanciful or erratic
- mischievousPlayfully causing trouble
- frolicsomeInclined to merriment
- impishPlayfully mischievous in manner
sportive · prankish · frivolous · giddy · romp · lark · antics · caper · joking · teasing
lighthearted
Cheerful and without worry
- easygoingRelaxed in temperament
- unconcernedFeeling no worry
- blitheCheerfully indifferent
insouciant · untroubled · buoyant · jaunty · breezy · cheerful · sunny · relaxed · unworried · content
unimportant
Lacking significance or weight
- inconsequentialLacking significance or impact
- minorScale with lowered third
- lightweightLacking mass or importance
superficial · trifling · negligible · insignificant · flimsy · shallow · insubstantial · throwaway · forgettable · meaningless
casual
Relaxed and informal
- relaxedFree of stress
- unofficialNot formally recognized
- offhandCasually unrehearsed
unpretentious · undemanding · unfussy · low-key · leisurely · loose · unstructured · flexible · impromptu · off-the-cuff