[adjective] rigidly accurate; allowing no deviation from a standard; "rigorous application of the law"; "a strict vegetarian" Synonyms: strict
[adjective] demanding strict attention to rules and procedures; "rigorous discipline"; "tight security"; "stringent safety measures" Synonyms: stringent, tight
[adjective] used of circumstances (especially weather) that cause suffering; "brutal weather"; "northern winters can be cruel"; "a cruel world"; "a harsh climate"; "a rigorous climate"; "unkind winters" Synonyms: brutal, cruel, harsh, unkind
