Strenuous
"Strenuous" in Czech
energický
(having great vigour)
namáhavý
(requiring great exertion)
náročný
(requiring great exertion)
usilovný
(requiring great exertion)
vysilující
(requiring great exertion)
vyčerpávající
(requiring great exertion)
úporný
(having great vigour)
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.