timid

胆小的、怯懦的

The timid puppy hid behind the sofa whenever guests arrived.

那只胆小的小狗一有客人来就躲到沙发后面。

羞怯的、腼腆的

She gave a timid smile and looked down at her shoes.

她腼腆地笑了笑，低头看著自己的鞋子。

保守的、畏缩的多含贬义

Critics called the government's response far too timid.

评论者批评政府的因应措施太过保守。

胆小的人常与the连用，作复数

This sport is definitely not for the timid.

这项运动绝对不适合胆小的人。