voiceless

字辨

dumb: 指没有说话的能力;多用于动物

dumb animals

mute: 指由于天生耳聋或早年耳聋,因而无法学习说话

mute persons

speechless: 指由于惊愕、兴奋、恐惧等,一时说不出话来

He was speechless with rage.

voiceless: 指由于天生、疾病等而完全丧失了声音

He became voiceless because of an operation.