Indifferent
Part of speech: adverb
Definition: To some extent, in some degree (intermediate between very and not at all); moderately, tolerably, fairly.
Part of speech: adjective
Definition: Not caring; apathetic. Mediocre, usually used negatively in modern usage. Being in the state of neutral equilibrium.
Example sentence: Time is not a great healer. It is an indifferent and perfunctory one. Sometimes it does not heal at all. And sometimes when it seems to, no healing has been necessary.
Unimportant
Part of speech: adjective
Definition: petty; not important or noteworthy
Example sentence: The tendency of modern scientific teaching is to neglect the great books, to lay far too much stress upon relatively unimportant modern work, and to present masses of detail of doubtful truth and questionable weight in such a way as to obscure principles.