无耻谰言 meaning in English

shameless babblings; a lie too brazen for words; a shameless [brazen] slander [lie]

I have perused several books of travels with great delight in younger days ; but having since gone over most parts of the globe , and been able to contradict many fabulous accounts from my own observation , it has given me a great disgust against this part of reading , and some indignation to see the credulity of mankind so impudently abused
我年轻时也曾以极大的兴趣读过几本游记；但自从我走遍大部分地球，并且能根据自己的观察反驳许多虚构的报道以后，我就非常厌恶这一部分读物了，也愤恨人类如此轻信这种无耻谰言。