Inconsistently Heinous villains who over time lose certain redeeming qualities, thus dehumanizing them to whatever extent. Examples of such redeeming qualities include love, mercy, empathy, honor, nobility, etc.

Usually, Fallen Heroes and Tragic fall under this category, but exceptions exist if they fully redeem themselves (e.g Lord Viren, Jet, Annie Leonhart, Aggie Prenderghast) or if they are not redeemed but never shed any of their redeeming qualities. (e.g. Azula, Dracula, Amanda Young, etc.) or if they were once wholly debased or came extremely close, but developed more redeeming qualities overtime that outweighed their villainy as well as subverting being debased (e.g. Tai Lung) or if their redeeming qualities are only not present in future installments due to heavy moral agency issues they eventually gain (e.g. Giygas).

Examples (excluding Fallen Heroes) are:

• Mr. Krabs and Plankton, who used to be best friends since childhood until their conflicts causing them to start a rivalry with each other.
• Clyde Shelton, who used to be a family man until his wife and daughter were murdered.
• Arthur Fleck, who used to be a sympathetic man until a tragedy slowly drove him into madness.
• Squidward Tentacles (Squidward and the Canned Bread Epidemic), who becomes an omnicidal maniac as he cannot stand being miserable in the first place.
• Billie227, who used to be Blaire Lily's best friend until she was betrayed, which made her become a bully and later suicidal.
• Tomura Shigaraki, who wanted to become a hero since childhood until he became a villain after he was taken under All For One's care.
• Bertram, who was previously Stewie's friend before the two eventually devolved into archenemies.
• Courtney, who starts off as a decent person in the first season, and is somewhat okay in the third, she loses most of her humanity and redeeming qualities when she comes back in the fifth season and starts to risk more lives and is much more sadistic than she was in the past.
• Isabela Keyes, who was once a Hero that genuinely valued those who aid/are around her yet let all her pride and past blind her into becoming an almost heartless person.
• Lilly, who used to be a hero and protective leader until Larry died and being pressured by betrayal, with very next to came crash her world down.
• General Hux, who used to have a genuinely sympathetic backstory where he was brutally abused by his own father before he loses most of his sympathetic qualities later on.

Please do not add Inconsistently Heinous villains who have only faked their redeeming qualities (e.g. Antwan Hovachelik, Audrey II, Arishem the Judge). Those villains should go under Charismatic, Fake Tragic, Faux Affably Evil, Remorse Fakers, False Lovers and/or Liars. However, characters from these categories should go here as long as they had redeeming qualities.

Also, villains who originally had other preventions like being too standard, comedic, amoral, reliant on fridge horror, or that many of their acts were done for shock value but got more heinous, motives and/or characterization should not be added here either (e.g. Gruntilda, Box Club Leader, The Core, and Aloyse Von Roddenstein) unless they've explicitly been established to have had redeeming qualities. This category is only for villains who once had genuine redeeming qualities but ended up subverting and losing them.

It is uncommon for an Inconsistently Heinous to be Wholly Debased and become completely evil due to the fact that they are supposed to have a lot of redeeming qualities, but rare examples of these villains who subvert all of them exist, only if they are too comedic, insufficiently characterized, tragic and/or too incompetent to be Near Pure Evil and the rest of their redeeming qualities are only debatable if any (e.g. Bertram, Gallaxhar, Sweet Pete, General Hux, Douche, and Balthazar Bratt). In some cases, they might not become wholly debased, but come extremely close to it (e.g.: The Riddler (The Batman Saga), Rand Ridley, Mitsuko Souma, Dabi, Koba, and Megatron (Transformers One))

Their Inconsistently Admirable equivalent is Reformed. However, they are not mutually exclusive, as for the case of On & Off characters, it is possible for one to subvert both corrupting and redeeming qualities (e.g. Bowser, Gumball Watterson, Eric Cartman, and Lelouch vi Britannia)

NOTE: Do not add Redeemed category unless they subverted few of their redeeming qualities and would rather stayed like this (e.g. Namor, Waluigi (SMG4)). As noted, it is altogether uncommon as by meaning, they STAY villains since Debased villains are meant to ultimately be irredeemable. They may show remorse for some deeds and even maintain other good qualities, but at the end of the day they never fail to continue in their unquestionably heinous ways, thus preventing them from full redemption. Even in cases a redeemed villain may look debased (e.g. Sarah Kerrigan, Sylvanas Windrunner, Count Bleck, Catra, Sunset Shimmer, Orochimaru, Hordak, Darth Vader, Aggie Prenderghast, Emperor Zarkon, Haggar, Itachi Uchiha, Mewtwo, AZ, Yuno Gasai, Cheon Seojin, Goro Akechi, Gorr the God Butcher, and Heinz Doofenshmirtz), or to an extent, WHOLLY debased (e.g. Mor'du, Dagur the Deranged, Creek from Trolls: The Beat Goes On!, and Megatron (Transformers: Prime)) if they have redeemed themselves away from it then they can no longer qualify. If the villain is already redeemed, you may remove this category.