懦夫 (nuò fū) - coward
懦弱 (nuò ruò) - weak and cowardly
懦怯 (nuò qiè) - timid and cowardly
懦小无能 (nuò xiǎo wú néng) - weak and ineffectual
懦夫勇士 (nuò fū yǒng shì) - cowardly and brave
懦夫无能 (nuò fū wú néng) - cowardly and incompetent
懦习惯了 (nuò xí guàn le) - used to being a coward
懦弱无力 (nuò ruò wú lì) - weak and powerless
懦言怯行 (nuò yán qiè xíng) - talk cowardly, act timidly