Why is French pronounciation so different from other Romance

Perdu : je n'utilise pas l'anglais sur ce forum...

Tell me if those Celtic languages sound nasal.


In Breton you have nasal consonants:
Gn, m, n.

Nasals vowels:

All vowels can be nasalized when preceding a ñ but the ñ is not pronounced.

Añ , eñ, euñ, iñ, oñ, uñ.