undownable in French
undownable in French
incontournable
(rare) Undeniably important; which cannot be played down or ignored.
primordial
(rare) Undeniably important; which cannot be played down or ignored.
inamovible
(rare) Invincible; which cannot be brought down or overcome.
inflexible
(rare) Invincible; which cannot be brought down or overcome.
irrépressible
(rare) Invincible; which cannot be brought down or overcome.
résilient
(rare) Invincible; which cannot be brought down or overcome.