Entry Word: rigorous

Function: adjective

Meaning: 1 given to exacting standards of discipline and self-restraint <a rigorous football coach who pushed his players to the limit> — see severe 1
2 meeting the highest standard of accuracy <a rigorous analysis of the data> — see precise 1
3 not allowing for any exceptions or loosening of standards <a rigorous diet and exercise regimen> — see rigid 1