无端 wúduān for no reason Origin Definitions Defs Strokes Stroke Words Sentences Sents wúduān for no reason · unavoidable · groundless accusation 无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less端 duān noun reason (bound form) A reason, cause, or origin; a point of contention or a disturbance.wúduān endless 无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less端 duān noun beginning (bound form) the start or origin of an eventwúduān unreasonable 无 無 wú adjectiveverb to not have to not have; there is no; lack; (as prefix) non-; un-; -less端 duān upright (bound form) Upright; straight; proper in conduct or character.