► unimportantnot having a big effect or influence or a lot of value or meaning, and not worth considering:  The article contained a lot of unimportant details.
► not important unimportant:  The name of the little girl is not important to the story.
► of no/little importance not important, or not very important:  His past is of little importance – what matters is what he’s doing now.
► minor small and not very important or serious, especially when compared with other things:  I just made a few minor edits, but overall your essay was great.
► trivial not important or serious:  She wastes a lot of time on trivial things like what color nail polish to wear.
► insignificant too small or unimportant to consider or worry about:  My own problems seemed insignificant in comparison to hers.
► negligible/marginal too slight or small to be important:  The difference in price is negligible, so don’t worry about it.
► secondary not as important as other related things:  All other questions were secondary.
► irrelevant not useful in or not relating to a particular situation, and therefore not important:  A person’s race should be irrelevant to hiring decisions.
► peripheral formal not as important as other things or people in a particular activity or situation:  A lot of the information he gave was only peripheral to the main issue.