benign

adjective4

1. •
   Kind; gentle; mild.

   • I people my world with benign spirits. Everything talks to me and I respond to it. — 1982
2. •
   [in compounds] Not harmful to the environment.
3. •
   Not posing any serious threat to health; not particularly aggressive or recurrent.

   • Despite the gruesome way it looks, cottontail rabbit papillomavirus is often benign, and many rabbits end up fighting it off on their own. — 2025
4. •
   Of a climate or environment, mild and favorable.