Petty
Part of speech: adjective
Definition: Little, trifling, or inconsiderable, as a petty fault.
Example sentence: My life is full of drama, and I don't have time to worry about something as petty as what I look like.
Trivial
Part of speech: adjective
Definition: Of little significance or value.Common, ordinary.Concerned with or involving trivia.Relating to or designating the name of a species; specific as opposed to generic.Of, relating to, or being the simplest possible case.Self-evident.pertaining to the trivium
Example sentence: Human beings are social creatures. We are social not just in the trivial sense that we like company, and not just in the obvious sense that we each depend on others. We are social in a more elemental way: simply to exist as a normal human being requires interaction with other people.