Synonyms for trespass

verb

1. To transgress

   offend, err, displease; see misbehave, sin, transgress.

2. To intrude

   intrude, encroach, invade, infringe; see meddle 1.

trespass implies an unlawful or unwarranted entrance upon the property, rights, etc. of another to trespass on a private beach; to encroach is to make inroads by stealth or gradual advances suburbs encroaching on our farmland; infringe implies an encroachment that breaks a law or agreement or violates the rights of others to infringe on a patent; intrude implies a thrusting oneself into company, situations, etc. without being asked or wanted to intrude on one's privacy; invade implies a forcible or hostile entrance into the territory or rights of others to invade a neighboring state