noun, noun which may take the genitive case particle 'no'
Used primarily in medical contexts to describe tumors, conditions, or growths that are not harmful. Also used figuratively for non-threatening situations or qualities.
検査の結果、腫瘍は良性だとわかった。
The test results showed that the tumor was benign.
このソフトウェアのバグは良性で、データに影響はない。
This software bug is benign and does not affect the data.