言之凿凿 (yán zhī záo záo) | Meaning: (idiom) to speak with conviction | Chinese Idiom with Pinyin & Origin

lit. chasing the wind and clutching at shadows (idiom); fig. groundless accusations · to act on hearsay evidence捕风捉影bǔ fēng zhuō yǐng

pavilion in the air (idiom); unrealistic Utopian construction · castles in Spain · imaginary future plans空中楼阁kōng zhōng lóu gé

(lit.) to scoop the moon out of the water (idiom) · (fig.) a hopeless endeavor水中捞月shuǐ zhōng lāo yuè

(idiom) to speak with conviction