a good/safe/sure bet

:  of a favorable character or tendency

:  bountiful, fertile

:  handsome, attractive

:  something that is good

:  something conforming to the moral order of the universe

:  praiseworthy character :  goodness

:  well

: used as an intensive

:  free from harm or risk :  unhurt

:  secure from threat of danger, harm, or loss

:  successful at getting to a base in baseball without being put out

:  a place or receptacle to keep articles (such as valuables) safe

:  condom

:  safe from danger or harm

:  firmly established :  steadfast

:  reliable, trustworthy

:  surely

:  something that is laid, staked, or pledged typically between two parties on the outcome of a contest or a contingent issue :  wager

:  the act of giving such a pledge

:  something to wager on

:  to stake on the outcome of an issue or the performance of a contestant

:  to maintain with or as if with a bet

:  to make a bet with

: between