Rigor — synonyms, definition

1. rigor (Noun) US

adversity asperity austerity cogency cruelty grimness hardness hardship harshness inclemency inexorability obstinacy ordeal rigidity rigorousness rigour rigourousness severeness severity sternness • • •

rigor (Noun) — The quality of being hard to endure, uninviting or formidable. ex. "the rigor of northern winters"

rigor (Noun) — The quality of being valid and rigorous.

rigor (Noun) — Excessive sternness. ex. "the rigors of boot camp"

believability credibility credibleness difficultness difficulty sternness strictness sternness