shy

a quick throw; "he gave the ball a shy to the first baseman"

start suddenly, as from fright

throw quickly

lacking self-confidence; "stood in the doorway diffident and abashed"; "problems that call for bold not timid responses"; "a very unsure young man"

short; "eleven is one shy of a dozen"

wary and distrustful; disposed to avoid persons or things; "shy of strangers"