non-impact
/nɒnˈɪmpakt/adjective
Not involving or characterized by impact (literal and figurative ); ( Computing ) designating or relating to printing that does not involve the contact of printing elements with the paper; (also, of a fitness regime) designed to put little or no harmful stress on the body.
noun
A decided absence or lack of impact; an insignificant or negligible impact.
Origin
1930s; earliest use found in Webster's New International Dictionary of the English Language. From non- + impact.