Not negligible; fairly many or considerable in amount or degree—'quite a lot.'
彼の提案には賛成する人が少なくない。
There are quite a few people who agree with his proposal.
地震の被害は少なくないが、支援が徐々に届いている。
The earthquake damage is considerable, but aid is gradually arriving.
少なくない企業がリモートワークを導入した。
A considerable number of companies have introduced remote work.
彼女の功績は少なくないと評価された。
Her achievements were evaluated as considerable.