Synonyms of insignificant

1 Syllable

light, naught, small, weer

2 Syllables

low-life, low-born, subpar, merest, trifling, small-fry, shoestring, third-string, runter, fairish, pointless, scanty, tinier, lesser, busher, tiniest, dinky, tiny, minim, minor, weeny, tenuous, measlier, deadwood, lightweight, rimming, substract, ruthful, idlest, wimpy, mere, paltrier, little, meager, teensy, drossy, bitsy, pee-wee, zipper, shucker, trivial, casual, paltry, petty, peewee, small-time, worthless, measly, no-good

3 Syllables

pitiful, uncostly, low-ranking, marginal, meaningless, senseless, nondescript, lowlife, pitiable, minutest, unmixed, microbic, minimal, doubletalk, purportless, doublespeak, minuter, no-account, pocket-size, mediocre, unmeaning, minute, time-wasting, subnormal, picayune, pintsize

4 Syllables

unemphatic, unimportant, nonessential, suboptimal, unsubstantial, inconspicuous, lilliputian, entry-level, inconsequent, unconspicuous, nongermane, immaterial, negligible, unpurposed, minuscule, teeny-weeny, irrelevant, teensy-weensy, minuscular, despicable, nugatory, unnotable, secondary

5 Syllables

inconsequential, unnoticeable, subordinate, unexceptional, undetectable, unimpressive, inappreciable, imperceptible, subalternate, imponderable, unobservable, unconsequential

6 Syllables

infinitesimal, underaverage, inconsiderable