Is yandere a word in the Scrabble Dictionary

No, yandere is not playable

...but would be worth 11 points.

Word not found in any official scrabble dictionaries.

"Yandere" Definition

noun

A fictional character who fits the archetype of being genuinely romantic, loving, kind, merciful, sparing, sweet and gentle, but is at the same time brutal, psychotic or deranged in behavior. the psychotic tendency can be both sudden and ever-present. often used for both comedic and dramatic displays of character.
Source: Wiktionary
Plural form of yandere.
Source: Wiktionary