spineless
adjective disapproving uk/ˈspaɪn.ləs/ us/ˈspaɪn.ləs/
没有勇气的;无胆量的，怯懦的
A spineless person does not have much determination and is not willing to take risks.
He was, she concluded, a spineless individual. 她断定他是个没有胆量的家伙。
Synonyms: gutless namby-pamby wet (WEAK) wishy-washy
Opposite: gutsy