tsundere /ˈ(t)sun.dəɹ.eɪ/adjective 1noun 1forms 3 adjective1 •Showing qualities typical of a tsundere.Ah, the cactus. / Truly the most tsundere of plants. — 2015 noun1 •(Internet) A fictional character who fits the archetype of being cold or even hostile towards another person before gradually showing a warm and caring side.I usually draw very peaceful, happy manga, so it has been a real challenge for me to illustrate the vice president's death glare and Ri-chan's subtle tsundere attitude. — 2008 formstsunderes · more tsundere · most tsundere