シャイ

(1)showing marked and often playful or irritating evasiveness or reluctance to make a definite or committing statement; "a politician coy about his intentions"

(2)際立った、時にふざけたまたはいらいらする曖昧さを見せる、あるいは、明確なまたは責任を持った発言をするのに気が進まない

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

(4)自信がないさま

(1)stood in the doorway diffident and abashed

(2)戸口に遠慮がちに赤面して立っていた

(3)problems that call for bold not timid responses

(4)気弱ではない大胆な応答を必要とする問題

(5)a very unsure young man

(6)非常に自信のない青年