strenuous

Requiring or using great effort or exertion; physically or mentally demanding.

ruТребующий или использующий большие усилия или напряжение; физически или умственно сложный.esQue requiere o implica un gran esfuerzo o tensión; física o mentalmente difícil o agotador.frQui exige ou implique de grands efforts ou une grande tension ; physiquement ou mentalement difficile.deGroße körperliche oder geistige Anstrengung erfordernd; anstrengend, mühsam oder kräftezehrend.ptQue exige ou emprega grande esforço ou tensão; fisicamente ou mentalmente difícil.zh需要或使用很大努力或精力的；在体力或脑力上艰难的。arصفة تدل على ما يتطلب جهدًا كبيرًا أو إجهادًا شديدًا، سواء كان بدنيًا أو ذهنيًا، وعلى ما هو شاق ومضنٍ.

1. Requiring great effort B2 formal

   Needing or using a lot of physical or mental energy.

   • Climbing the mountain was a strenuous activity.
   • She avoided strenuous exercise after her surgery.
   • The project required strenuous mental effort.

   ruТребующий больших усилийesQue requiere gran esfuerzofrqui exige un grand effortdeGroße Anstrengung erforderndptQue exige grande esforçozh费力的arيتطلب جهدًا كبيرًا

   Синонимы: arduousbackbreakingburdensomechallengingdemandingdifficultexactinghardlaboriousonerousrigoroustaxingtoughtrying

   Антонимы: easyeffortlesslightsimpleundemanding

2. Vigorous or active B2 formal

   Showing or involving great energy, determination, or activity.

   • He made a strenuous attempt to finish the race.
   • The team put up a strenuous defense against the opponent.
   • Her strenuous objections changed the committee's decision.

   ruЭнергичныйesenérgico, vigorosofrénergique, vigoureuxdeEnergischptEnérgicozh精力充沛的arنشيط

   Синонимы: activedetermineddynamicenergeticforcefulintenserobustspiritedtirelessvigorous

   Антонимы: idleinactivelazylethargicsluggish

• more strenuous comparative form
• most strenuous superlative form