na-adjective
invasive
Medical term describing procedures, treatments, or diseases that involve entering the body, typically by incision or insertion of instruments.
この手術は侵襲的で、回復に時間がかかる。
This surgery is invasive and takes time to recover from.
侵襲
We will avoid invasive tests and first perform imaging diagnostics.
Compound of 侵襲 (invasion, encroachment) and the adjectival suffix 的 (-tic, -ive). The base 侵襲 is itself composed of 侵 (invade) and 襲 (attack).