无言可对

unable to reply (idiom); left speechless / at a loss for words

not to have / no / none / not / to lack / un- / -less

to remain silent / to have nothing to say

words / speech / to say / to talk

can / may / able to / to approve / to permit / to suit / (particle used for emphasis) certainly / very

used in 可汗[ke4 han2]

right / correct / couple / pair / towards / at / for / to face / opposite / to treat (sb a certain way) / to match together / to adjust / to fit / to suit / to answer / to reply / classifier: couple

right; correct / towards; at; for / concerning; regarding / to treat (sb a certain way) / to face / (bound form) opposite; facing; matching / to match together; to adjust / to fit; to suit / to answer; to reply / to add; to pour in (a fluid) / to check; to compare / classifier: couple; pair