From Longman Dictionary of Contemporary Englishthat’s not saying muchthat’s not saying muchSTRANGEused to say that it is not surprising that someone or something is better than another person or thing because the other person or thing is so bad This version is better than the original, but that’s not saying much. → say
Examples from the Corpus
that’s not saying much• Better than Alex O'Neal's offering, but that's not saying much. 