Dictionary and Thesaurus

Definition of Rigorous

• (a.) Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.
• (a.) Severe; intense; inclement; as, a rigorous winter.
• (a.) Violent.

Synonyms of Rigorous

• Strict
• Hard-And-Fast
• Exacting
• Stringent
• Stern
• Tight
• Nonindulgent
• Rigid
• Fuddled
• Nasty
• Squiffy
• Crocked
• Plastered
• Mean
• Mingy
• Smashed
• Wet
• Miserly
• Compressed
• Cockeyed
• Taut
• Sozzled
• Soaked
• Close
• Stiff
• Besotted
• Slopped
• Pie-Eyed
• Blotto
• Loaded
• Blind Drunk
• Pissed
• Sloshed
• Soused
• Pixilated
• Severe
• Austere
• Inflexible
• Uncompromising
• Hard
• Morose
• Unmitigated
• Harsh
• Relentless
• Unrelenting
• Inexorable
• Unyielding
• Exact

Antonyms of Rigorous

• Undemanding
• Inexact
• Affable
• Easy
• Gentle
• Lenient
• Mild
• Soft
• Tender
• Yielding
• Pliable
• Sweet
• Tractable
• Bland
• Genial
• Indulgent

Homophones of Rigorous