I. ˈ ̷ ̷| ̷ ̷ adjective
Etymology: odds + on, adverb
1.
a. : that is more likely to win or that is viewed as being more likely to win than not
an odds-on favorite at the racetrack
: having or viewed as having a better than even chance to win
an odds-on political candidate
b. : that is viewed as being more likely to be so or more likely to turn out so than not
the book is an odds-on best seller
an odds-on candidate for reform school — Newsweek
fairly sure : quite probable
it's odds-on she did it — Ngaio Marsh
2. : that does not involve much risk : fairly good
an odds-on chance of getting out
: fairly safe : pretty sure
if you were given the opportunity to make a fresh start, it is an odds-on bet you'd wind up in much the same sort of job — Stanley Frank
II. noun
( -s )
: favorable odds — usually used with at
won the chief event and at odds-on