"Impinge on" is a phrase that refers to a situation where something has a negative impact or interferes with a particular element. Some common synonyms for impinge on include "infringe upon," "encroach," "intrude," "trespass," "violate," and "interfere." These words are used interchangeably to describe situations where something is causing a disturbance or perceived as a nuisance. Other synonyms for impinge on include "affect," "impact," "influence," "disturb," and "affect adversely." While the term "impinge" has a negative connotation, some synonyms like "impact" and "influence" can be used in both positive and negative contexts.