unimportant, trifling, or petty

Omit the insignificant details.

too small to be important

an insignificant sum.

of no consequence, influence, or distinction

a minor, insignificant bureaucrat.

without weight of character; contemptible

an insignificant fellow.

without meaning; meaningless

insignificant sounds.

a word, thing, or person without significance.

adjective

consequential , important , significant , substantial , valuable

adjective

casual , immaterial , inappreciable , inconsequential , inconsiderable , infinitesimal , irrelevant , lesser , light , lightweight * , little , meager , meaningless , minim , minimal , minor , minuscule , minute , negligible , nondescript , nonessential , not worth mentioning , nugatory , paltry , petty , pointless , purportless , scanty , secondary , senseless , small , trifling , trivial , unimportant , unsubstantial , inconsequent , commonplace , contemptible , dinky , inferior , puny , tiny , worthless