invasive invasive /ˌɪnˈveɪsɪv/

adjective

1. Gradually intrusive without right or permission  ( encroaching , invasive , trespassing )
   gradually intrusive without right or permission
    We moved back from the encroaching tide
   we moved back from the encroaching tide
    Invasive tourists
   invasive tourists
    Trespassing hunters
   trespassing hunters
   
2. Marked by a tendency to spread especially into healthy tissue  ( invasive )
   marked by a tendency to spread especially into healthy tissue
    Invasive cancer cells
   invasive cancer cells
   
3. (medicine) relating to a technique in which the body is entered by puncture or incision  ( invasive )
   (medicine) relating to a technique in which the body is entered by puncture or incision
   
4. Involving invasion or aggressive attack  ( incursive , invading , invasive )
   involving invasion or aggressive attack
    Invasive war
   invasive war