hardest-earned

Adjective

form-of superlative

superlative form of hard-earned: most hard-earned

Japanese Meaning

「hard-earned」の最上級で、意味としては「最も苦労して得た」となります。

After years of setbacks and late nights, that promotion remains my hardest-earned achievement.

何年もの挫折や夜遅くまでの努力を経て、その昇進は私が最も苦労して得た成果だ。

Sense（1）

superlative form of hard-earned: most hard-earned