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General DescriptionType 1 characteristics and examplesType 2 characteristics and examples
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Classical TsundereInitial state: Hostile toward the subject, usually due to a negative first impression.

Increasingly grows more affectionate over time as she comes to view the subject favorably.		The Classical Tsundere's negative impression is not based on misunderstandings or character flaws, but rather genuine incompatibilities between the two that diminish as they come to know each other better.

Chidori from Full Metal Panic!
Princess Leia from Star Wars.
The Classical Tsundere's negative impression of the subject is justified or a result of understandable aggravation. Her opinion of the subject improves as the subject improves.

Genuine incompatibilities between the two may also exist and either diminish over time as with the Type 1 variety or remain a source of tension.

Naru from Love Hina.
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Modern TsundereInitial state: Secretly harbors romantic feelings toward the subject that either pre-exist or develop relatively early, but personal insecurities usually prevent her from acknowledging them. These personal failings cause the Modern Tsundere to behave belligerently towards the subject and cause her to be physically abusive. The Modern Tsundere assaults the subject disproportionately to his perceived offense, sometimes without justification at all.

The Modern Tsundere occasionally displays tenderness towards the subject and can appear receptive towards romantic overtures, even initiating them herself, but almost always reverts suddenly to her usual hostile and abusive behavior without warning.		Shana from Shakugan no Shana.
Louise from Zero no Tsukaima.
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Postmodern TsundereInitial state: Secretly harbors romantic feelings towards the subject that may have pre-existed for years. Not physically abusive towards the subject, but personal insecurities prevent her from displaying any kindness or tenderness towards the subject.

The Postmodern Tsundere remains aloof and can even be emotionally abusive, but afterwards exhibits self-loathing at her inability to be honest with her feelings.
The Type 1 Postmodern Tsundere manages to engage dere-dere mode relatively easily and/or at an early stage and henceforce displays affection towards the subject openly.

Ai from Oreshura.
Nagisa from Jitsu wa Watashi wa.		The Type 2 Postmodern Tsundere has difficulty setting aside her personal insecurities and, in fact, might not succeed in ever doing so.

The Type 2 Postmodern Tsundere does not openly engage dere-dere mode despite her self-loathing at her inability to communicate affection towards the subject.

The Type 2 Postmodern Tsundere differs from the Type 1 variety primarily in their respective abilities to engage dere-dere mode.

Naruko (Anaru) from Ano Hana.
Sanae from Tokujouma no Shinryakusha!?.
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Neoclassical TsundereInitial state: Hostile toward the subject, usually due to a negative first impression. Aloof but not outright abusive towards the subject. (Cf. Modern Tsundere who physically assaults subject without justifiable provocation.)

Develops positive impression of the subject over time and becomes increasingly affectionate as she comes to see the subject in a favorable light.		Transitions from initial tsun-tsun state to dere-dere mode relatively quickly or easily, perhaps alarmingly so.

Cecilia Alcott from IS: Infinite Stratos.

Stella Vermillion from Rakudai Kishi no Eiyuutan.		Essentially the same as Classical Tsundere, except the subject comes from the "Post-Louise Era." The tsundere and her subject might not actually develop a romantic relationship, but this is neither a requirement nor a disqualifier.

Masuzu from Oreshura.
Haruhi from Suzumiya Haruhi no Yuuutsu.
Angela Balzac from Rakuen Tsuihō (Expelled From Paradise)
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False TsundereNot tsun-tsun and dere-dere to a single subject. Displays tsun-tsun and dere-dere characteristics towards different subjects.

Masochistic subjects may incorrectly perceive the False Tsundere's hostility as evidence of secretly harbored affection. These subjects mistake the False Tsundere for a Modern Tsundere, sometimes deliberately so.		Hostile towards one or more subjects. Affectionate towards one or more different subjects.

Asuka (Soryu) from Evangelion (TV).		The Type Two False Tsundere consistently displays a tsun-tsun attitude all the times to everyone, but optimists nevertheless believe she harbors a secret dere-dere side which remains yet unactivated.
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