say it: uh-nim-PAWR-tuhnt
unimportant is an adjective meaning "not important". It carries 2 recorded senses.
not important
“a relatively unimportant feature of the system”
“the question seems unimportant”
devoid of importance, meaning, or force
Definitions, synonyms and semantic relations for unimportant come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.