adjective Etymology: Latin strenuus Date: 1599 1. vigorously active ; energetic , fervent , zealous , marked by or calling for energy or stamina ; arduous , see: vigorous strenuosity noun ~ly adverb ~ness noun
STRENUOUS
Meaning of STRENUOUS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012