संकोची

shy, reserved, hesitant

bashful

self-consciously timid; - Ezra Pound

hesitant

lacking decisiveness of character; unable to act or decide quickly or firmly

modest

marked by simplicity; having a humble opinion of yourself

reserved

set aside for the use of a particular person or party

stolid

having or revealing little emotion or sensibility; not easily aroused or excited; ; - Nordhoff & Hall; -Virginia Woolf

diffident

showing modest reserve

inhibited

to put down by force or authority

mousy

quiet and timid and ineffectual

retiring

go into retirement; stop performing one's work or withdraw from one's position