diffident
['difidənt]
adj.无自信的, 客客气气的,羞怯的
例句与用法：
He is diffident about expressing his opinions.
他对于表达自己的意见感到胆怯。
The quality or state of being diffident; timidity or shyness.
缺乏自信; 胆怯缺乏自信的性质或状态; 胆小的或羞怯的
词形变化：
副词: diffidently |
详细释义：
a.
缺乏自信的, 懦怯的; 羞怯的[(+about)]
She is diffident about expressing her opinions.
她怯于表述自己的意见。