off chance

Slim but possible

An off chance is a small or unlikely possibility, typically used in the phrase on the off chance: I stopped by on the off chance you'd be home.

The expression acknowledges low probability while justifying the attempt anyway—worth trying despite the odds.

Related

slim · luck · blind luck · wishful thinking · remote · long odds · against all odds · shot in the dark · virtuality · leap of faith · unlikely · last resort · contingency · calculated risk · wish · gamble · maybe · dice

Opposites
probability/likelihood

off chancecertainty

Total absence of doubt

sure thing · guarantee · foregone conclusion · lock · safe bet

Family

off, chance, chances, happenstance

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G