Open English Wordnet
Nouns
(n)timid, cautiouspeople who are fearful and cautious“whitewater rafting is not for the timid” Adjectives
(a)timidshowing fear and lack of confidence (a)diffident, shy, timid, unsurelacking self-confidence“stood in the doorway diffident and abashed”,
“problems that call for bold not timid responses”,
“a very unsure young man”