STRENUOUS, adjective [Latin] 1. Eagerly pressing or urgent; zealous; ardent; as a strenuous advocate for national rights; a strenuous opposer of African slavery. 2. Bold and active; valiant, intrepid and ardent; as a strenuous defender of his country.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI