nebbish

noun

A person regarded as weak-willed or timid.

noun

A person who is ineffectual, timid, and often luckless; a person of no significance.

noun

One who is fearful and timid, especially in making decisions and plans, in discussions, debates, arguments, and confrontations, and in taking responsibility.

noun

A loser.

noun

(Yiddish) a timid unfortunate simpleton