insecure

US /ˌɪn.səˈkjʊr/
UK /ˌɪn.səˈkjʊr/
"insecure" picture
1.

不安全的, 不自信的, 焦虑的

not confident or assured; uncertain and anxious

:
She felt insecure about her appearance.
她对自己的外表感到不自信
He's very insecure about his public speaking skills.
他对自己的公开演讲能力非常不自信
2.

不牢固的, 不安全的, 不稳定的

not firmly fixed or safely protected

:
The ladder felt insecure as he climbed higher.
他爬得越高,梯子就越感到不稳
The old bridge was structurally insecure.
这座旧桥结构上不牢固