strenuous

• Que requiere o implica un gran esfuerzo o tensión; física o mentalmente difícil o agotador.

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

1. Requiring great effortB2formal

   Needing or using a lot of physical or mental energy.

   Que requiere gran esfuerzo

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

   Sinónimosarduousbackbreakingburdensomechallengingdemandingdifficultexactinghardlaboriousonerousrigoroustaxingtoughtrying

   Antónimoseasyeffortlesslightsimpleundemanding

2. Vigorous or activeB2formal

   Showing or involving great energy, determination, or activity.

   enérgico, vigoroso

   • 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.

   Sinónimosactivedetermineddynamicenergeticforcefulintenserobustspiritedtirelessvigorous

   Antónimosidleinactivelazylethargicsluggish