If you describe someone as timorous, you mean that they are frightened and nervous of other people and situations. [literary]
He is a reclusive, timorous creature.
Synonyms: timid, nervous, shy, retiring
2. adjective
If you describe someone's actions or decisions as timorous, you are criticizing them for being too cautious or weak, because the person is not very confident and is worried about the possible consequences of their actions. [disapproval]
Some delegates believe the final declaration is likely to be too timorous.