safe bet

safe bet (plural safe bets)

1. Something that is almost certainly true.

   Synonyms: good bet, sure bet, fair bet, dead cert; see also Thesaurus:sure thing

   Near-synonym: best bet

Used with the indefinite article a.

• “be a safe bet”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.
• “a good bet a safe bet”, in Collins English Dictionary.
• “a good safe bet” in Longman Dictionary of Contemporary English, Longman.