Synonyms: rigor, rigour, validity, cogency
Definition: the quality of being valid and rigorous
Similar words: credibility, credibleness, believability
Definition: the quality of being believable or trustworthy
Definition: the quality of having legal force or effectiveness
Similar words: legality
Definition: lawfulness by virtue of conformity to a legal statute
Synonyms: validity, lustiness, robustness, hardiness
Definition: the property of being strong and healthy in constitution
Similar words: strength
Definition: the property of being physically or mentally strong
Usage: fatigue sapped his strength