Denshi Jisho — Online Japanese dictionary

文句 もんく 1: phrase;
2: complaint
Common word, Noun 
文句なし もんくなし undisputed; entirely; perfect
Common word, No-adjective 
文句なく もんくなく undisputedly; perfectly
Adverb 
文句無し もんくなし undisputed; entirely; perfect
No-adjective 
文句を付ける もんくをつける to complain; to lodge a complaint
Expression, Ichidan verb 

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