risk

Synonyms: accident contingency danger exposedness exposure flyer fortuity fortune gamble hazard header jeopardy liability liableness luck openness opportunity peril plunge possibility prospect shot in the dark speculation stab uncertainty venture wager

Antonyms: certainty safety sureness surety

Synonyms: adventure beard be caught short brave chance compromise confront dare defy defy danger encounter endanger expose to danger face gamble go out of one’s depth hang by a thread hazard imperil jeopardize jeopardy leap before looking leave to luck meet menace peril play with fire plunge put in jeopardy run the chance run the risk skate on thin ice speculate tackle take a flyer take a header take a plunge take on take the liberty venture wager

Antonyms: be certain