无缘无故
Traditional form:
無緣無故
Pinyin (reading):
wúyuánwúgù
Definitions:
- no cause, no reason (idiom); completely uncalled for
Characters:
- 无 - no, not; lacking, -less
- 缘 - reason, cause; fate; margin, hem
- 无 - no, not; lacking, -less
- 故 - reason, cause; happening, instance
Traditional characters: