Reserved, modest, and discreet; behaving with restraint and caution to avoid impropriety.
彼女は慎み深い性格で、自分の意見を押し付けない。
She is modest and doesn't force her opinions on others.
慎み深い振る舞いは職場で信頼を得ることが多い。
Modest behavior often earns trust in the workplace.
冠婚葬祭の場では慎み深い服装が求められることが多い。
At ceremonial occasions, modest attire is often expected.