'Invasive' definitions:

Definition of 'invasive'

From: WordNet
adjective
Relating to a technique in which the body is entered by puncture or incision [ant: noninvasive]
adjective
Marked by a tendency to spread especially into healthy tissue; "invasive cancer cells" [ant: confined]
adjective
Involving invasion or aggressive attack; "invasive war" [syn: incursive, invading, invasive]
adjective
Gradually intrusive without right or permission; "we moved back from the encroaching tide"; "invasive tourists"; "trespassing hunters" [syn: encroaching(a), invasive, trespassing(a)]

Definition of 'Invasive'

From: GCIDE
  • Invasive \In*va"sive\, a. [LL. invasivus: cf. F. invasif. See Invade.]
  • 1. Tending to invade; characterized by invasion; aggressive. "Invasive war." --Hoole. [1913 Webster]
  • 2. (Med.) tending to spread, especially tending to intrude into healthy tissue; -- used mostly of tumors. [Narrower terms: malignant] PJC]

Synonyms of 'invasive'

From: Moby Thesaurus