An inferior position or disadvantage in a competition, confrontation, or situation; being at a disadvantage (e.g., numerically or strategically).
序盤にゴールを奪われ、チームは劣勢に立たされた。
They conceded a goal early and the team was put at a disadvantage.
数字的に劣勢でも、条件次第で逆転は可能だ。
Even if you're numerically disadvantaged, a comeback is possible depending on the circumstances.
交渉で劣勢に立たないよう準備を整えた。
We prepared so as not to be at a disadvantage in the negotiations.