Difference between Brutal and Rigorous

BRUTAL vs RIGOROUS: ADJECTIVE

Severe; intense; inclement; as, a rigorous winter.
Adhering scrupulously and exactly to accepted principles; hence, logically valid.
Violent.
Severe; intense; inclement.
Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless
Demanding strict attention to rules and procedures
Rigidly accurate; allowing no deviation from a standard
Used of circumstances (especially weather) that cause suffering
Characterized by or adhering to strict standards or methods; exacting and thorough.
Harsh, severe, or demanding.
Very unpleasant or inclement.
Adhering strictly to a belief or ideology; uncompromising or inflexible.

Pertaining to or resembling a brute; brutish: as, brutal nature; “brutal kind,”
Hence—2. Savage; cruel; inhuman; unfeeling: as, brutal passions; brutal manners.
Rude; harsh; coarse; crude.
=Syn.2. Brutish, Beastly, etc. (see brute); unfeeling, ruthless, rude, rough, gross, merciless, barbarous.
Punishingly harsh
Resembling a beast
Showing lack of human sensibility

Acting with rigor; strict in performance or requirement.
Marked by inflexibility or severity; stringent; exacting; hence, unmitigated; merciless.
Exact; strict; precise; scrupulously accurate: as, a rigorous definition or demonstration.
Hard; inclement; bitter; severe: as, a rigorous winter.
Rigidly accurate
Synonyms and Severe, Rigid, etc. (see austere), inflexible, unbending, unyielding.

Ruthless, Gruesome, Horrific, Merciless, Fell, Roughshod, Rigorous, Hard, Unkind, Inhumane, Barbarous, Harsh, Cruel, Vicious, Savage

Meticulous, Exacting, Intensive, Rigor, Thorough, Unkind, Exact, Demanding, Cruel, Tight, Hard, Harsh, Brutal, Strict, Stringent

Ruthless, Gruesome, Horrific, Merciless, Fell, Roughshod, Rigorous, Hard, Unkind, Inhumane, Barbarous, Harsh, Cruel, Vicious, Savage

Meticulous, Exacting, Intensive, Rigor, Thorough, Unkind, Exact, Demanding, Cruel, Tight, Hard, Harsh, Brutal, Strict, Stringent

NPC inside a brutal, open world video game.
My divorce has been long, complicated and brutal.
Which means their training is brutal and intense.
Steamboat Sully, who engage in a brutal fistfight.
Murder Arrest Made in Brutal Killing of Sen.
Brutal bloody battles with men and brutal bloody battles with monsters.
Runs the gamut from more melodic acts all the way to overlapping with brutal deathcore, but is generally on the more brutal end.
Brutal Black Dragons to help you all try and make the most money per hour at Brutal Black Dragons!
Beautiful girl next door suffers brutal elbow bondage, her first brutal bondage shoot.
Catacombs of Kourend, between the brutal blue and brutal black dragons.

Promotes a rigorous academic curriculum for every student.
These economical seals go through rigorous quality assure.
NSF GMP Certified, rigorous compliance and quality control.
His students were given a rigorous practice schedule.
Christian service, through rigorous, relevant, and relational experiences.
The more rigorous techniques are gradually introduced later.
We apply rigorous standards to prospective domestic franchisees.
Academic rigor Some of the classes were not rigorous enough while some were very rigorous.
You always want to be rigorous about the conditions of approval, but especially rigorous when you have no property tax coming in.
Setting rigorous butrealistic growth targetsnowing how to set rigorous yet realistic growth targets may be a challenge or teachers.