Arduous

"Arduous" in Russian

круто́й

krutój

(hard to climb or traverse)

напряжённый

naprjažónnyj

(needing or using up much energy)

тру́дный

trúdnyj

(needing or using up much energy)

труднодосту́пный

trudnodostúpnyj

(hard to climb or traverse)

тяжёлый

tjažólyj

(needing or using up much energy)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.