supported by irrefutable evidence
The Chinese idiom pinyin is Z á oz á oy ǒ UJ ù, which means there is definite evidence. It comes from Xu Xiake's travels to Yunnan diary by Xu HongZu of Ming Dynasty.
Idiom usage
There is a definite evidence, an example, and my younger brother's words are well founded.
Analysis of Idioms
near synonym: hard to say, hard to support antonym: groundless, nonsense
The origin of Idioms
In Xu Xiake's travel notes to Yunnan diary, written by Xu HongZu of Ming Dynasty, "Gong Qiqian is very clear about what I have talked about, and all of them are well founded."
Idiom explanation
Chisel: sure. There is solid evidence.
supported by irrefutable evidence
Food, vegetables and drinking water - fàn shū yǐn shuǐ
the army is completely wiped out - piàn jiǎ bù cún
Abandon one's armor and turn to another - qì jiǎ tóu gē
A wrong name makes a wrong speech - míng bù zhèng,yán bù shùn