My prefix is a winner.
My suffix is the inner.
My infix is whole.
My whole is cold.
2 Answers
I think the answer is
Winter
My prefix is a winner.
Win
My suffix is the inner.
Inter - a prefix used to mean "between"
My infix is whole.
Int - short for integer in computer programming, i.e, a whole number
My whole is cold.
Winter is the coldest season.
Passionless
Prefix
Prefix "pass", what the winner has done to everyone else in a race
Suffix
Suffix "less", a number less than x is inside the set of natural numbers up to x
Infix
Infix "ion", a perfectly whole bit of matter, though I grant the missing electron may make this a stretch
The whole
Passionless means "cold or unemotional"