I don't understand the difference between these words.
Whats does mean each word? In whats cases, can I use each word?
I saw these words in Google Translate, Collins, Lexico.
Google Translate - both words mean barbed (adv).
Lexico - bristly means barbed (adv) - as I'm understood. briery - not find this word.
Collins - same as Lexico.
I'm not sure that Google Translate correctly translated briery 'cause Google Translate offered me one result only. Also, Collins and Lexico have not this word. It looks like English has no word. But Google Translate translated it.