strenuous

About 2.46 uses per million words.

Meaning

1. adjective Having great vigour or energy; forceful.

   strenuous exercise

2. adjective Requiring great exertion; very laborious.

Similar words

energetic effortful arduous straining vigorous vibrant intensive fervent robust vivid

Often followed by

efforts and exercise effort life work opposition activity physical

Word family

strenuosities strenuosity strenuously strenuousness strenuousnesses