ten to one

US /tɛn tu wʌn/
UK /tɛn tu wʌn/
"ten to one" picture
1.

très probablement, presque certainement

very likely; almost certainly

:
Ten to one, he'll be late as usual.
Dix contre un, il sera en retard comme d'habitude.
It's ten to one that the train will be delayed.
Il y a dix contre un que le train sera en retard.