diffident
词形变化：
同义词：
shy | timid | insecure | hesitant | retiring | verecund | coy | timorous | abashed | bashful | sheepish | shrinking | fainthearted | faint-hearted | reluctant | demure | unassertive | modest | unsocial | self-conscious | unassuming | fearful | unsure | reticent | reserved | unobtrusive | self-effacing | quiet | oneself | a | of | shell | in |
反义词：
词义辨析：
同义:
a.不自信的, 胆怯的
shy
bashful
abashed
coy
demure
verecund
timid
timorous
insecure
faint-hearted
self-conscious
unsocial
sheepish
modest
retiring
in a shell
hesitant
unassertive
unsure of oneself
shrinking
unassuming
reluctant
fainthearted
同义参见:
fearful
反义:
a.无自信的; 胆怯的
confident
反义参见:
bold