
1) Dinky 2) Fiddling 3) Footling 4) Futile 5) Immaterial 6) Imperceptible 7) Inappreciable 8) Inconsequent 9) Inconsequential 10) Inessential 11) Insignificant 12) Irrelevant 13) Little 14) Meaningless 15) Mere 16) Mickey mouse 17) Minor 18) Niggling 19) Nonmeaningful 20) Not a big deal 21) Ofnoaccount
Found on
https://www.crosswordclues.com/clue/unimportant

1) Fiddling 2) Footling 3) Frivolous 4) Immaterial 5) Inconsequent 6) Inconsequential 7) Indifferent 8) Inessential 9) Insignificant 10) Lightweight 11) Lilliputian 12) Little 13) Marginal 14) Meaningless 15) Mickey mouse 16) Minor 17) Negligible 18) Niggling 19) Nonmeaningful 20) Not important 21) Petty
Found on
https://www.crosswordclues.com/clue/unimportant

[
adj] - not important
Found on
http://www.webdictionary.co.uk/definition.php?query=unimportant
adjective not important; `a relatively unimportant feature of the system`; `the question seems unimportant`
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.