in the teeth of
US /ɪn ðə tiːθ əv/
UK /ɪn ðə tiːθ əv/

1.
a pesar de, frente a
in spite of; despite (something difficult or dangerous)
:
•
They continued their journey in the teeth of a raging blizzard.
Continuaron su viaje a pesar de una furiosa ventisca.
•
The company launched the new product in the teeth of strong competition.
La empresa lanzó el nuevo producto a pesar de la fuerte competencia.