Insignificant (adjective)

1. Not important or worthwhile; of little consequence.
2. Too small or unimportant to be worth consideration.
3. Not having a noticeable effect or influence.

Origin:

Late middle english (in the sense "not capable of being signed"): from late latin insignificans, from in- "not" + significant- "having meaning" (see significant).

Examples:

1. The minor mistake was considered insignificant in the grand scheme of things.
2. The result of the test was deemed insignificant due to the small sample size.
3. The error was considered insignificant and didn't affect the final outcome.
4. The decrease in sales was deemed insignificant and not a cause for concern.
5. The discrepancy was considered insignificant and didn't require further investigation.