セカンドベストMeanings1nounsecond bestA straightforward loanword meaning the runner-up or the next best option after the top choice.彼かれは大たい会かいでセカンドベストだった。He was second best in the tournament.このプランはセカンドベストだが、十じゅう分ぶん実じつ用よう的てきだ。This plan is second best, but it's practical enough.