Of or pertaining to invasion; offensive.
Of an animal or plant: that grows (especially uncontrollably) in environments which do not harbour natural enemies, often to the detriment of native species or of food or garden flora and fauna.
Intrusive on one's privacy, rights, sphere of activity, etc.
That invades a foreign country using military force; also, militarily aggressive.
Originating externally.
Of a procedure: involving the entry of an instrument into part of the body.
Of a carcinoma or other abnormal growth: that invades healthy tissue, especially rapidly.
An invasive organism, such as an animal or plant.
That meddles.
unwanted interference