strenuous

• Große körperliche oder geistige Anstrengung erfordernd; anstrengend, mühsam oder kräftezehrend.

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.

   Große Anstrengung erfordernd

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

   Synonymearduousbackbreakingburdensomechallengingdemandingdifficultexactinghardlaboriousonerousrigoroustaxingtoughtrying

   Antonymeeasyeffortlesslightsimpleundemanding

2. Vigorous or activeB2formal

   Showing or involving great energy, determination, or activity.

   Energisch

   • 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.

   Synonymeactivedetermineddynamicenergeticforcefulintenserobustspiritedtirelessvigorous

   Antonymeidleinactivelazylethargicsluggish