Something insignificant is so small, minor, or unimportant that it doesn't really matter or make a difference. When your teacher says a few spelling mistakes are insignificant compared to the strong ideas in your essay, she means those tiny errors don't change the overall quality of your work. An insignificant amount of rain might dampen the sidewalk but won't cancel the baseball game.

A scratch on your shoe might be insignificant, while a torn sole would be a real problem. An insignificant detail in a story is one you could forget without missing anything important.

People sometimes feel insignificant when they think they're too small to make a difference. But sometimes what seems insignificant at first turns out to matter more than expected.