Definify.com

Webster 1913 Edition

adv.

without significance, importance, or effect; to no purpose.

“Anger insignificantly fierce.”

Cowper.

adv.

Without meaning, as words.

Without importance or effect; to no purpose.

insignificantly ‎(comparative more insignificantly, superlative most insignificantly)

of such extremely small quantity or degree that it is not worth measuring