1.
not large enough to consider or notice
2.
not worthy of notice
3.
signifying nothing
insignificant sounds
4.
of little importance or influence or power; of minor status
a minor, insignificant bureaucrat
5.
not important or noteworthy
The following are synonyms for 'insignificant'. Click on any of them to get both Bibliodata's full list of common definitions and a further set of synonyms.
Of all the words Dr. Seuss made up in his storybooks, only one has stuck in the English vocabulary: grinch, which is refers to a killjoy -- and it took more than 20 years.