To flow in torrents (of water)
Indicates that something continues without stopping. Can be used in reference to one's speech
Neutral
他在会上滔滔不绝地讲了两个钟头 | Tā zài huì shàng tāotāo bù juédì jiǎngle liǎng gè zhōngtóu
He talked for two hours without stopping at the meeting
[Source]
小明总是在我面前滔滔不绝的说话,让我感觉到有点烦 | Xiǎo Míng zǒng shì zài wǒ miànqián tāotāo bù jué de shuōhuà, ràng wǒ gǎnjué dào yǒudiǎn fán
It bothers me that Xiao Ming is always talking incessantly around me
[Source]
None
滔滔不竭 (tāo tāo bù jié)
This is an HSK chengyu
《开元天宝遗事》(Kāi Yuán Tiān Bǎo Yí Shì), a work by 王仁裕 (Wáng Rén Yù) of the Five Dynasties period (五代 | wǔ dài | 907 - 960)
This chengyu is from a line in the work listed in the "Origin" section above