Strenuous - Definition
strenuous
adj 1: characterized by or performed with much energy or force;
"strenuous exercise"
2: taxing to the utmost; testing powers of endurance; "his
final, straining burst of speed"; "a strenuous task"; "your
willingness after these six arduous days to remain here"-
F.D.Roosevelt [syn: arduous, straining, strenuous]