mean (cruel) is inkeä

inkeä = mean (adjective) (Some things Google found for "inkea": an uncommon term; a French e-commerce printing equipment company; INkea Ltd was the former name of a Croatian furniture company; INKEA s.r.o. is a Czech furniture company which may be connected; a rare first name; similar Inkee is the name of a place in Finland)

Word derivation for "mean" (cruel) :
Basque = anker, Finnish = ilkeä
Miresua = inkeä

This is a new word.

The word mean appears as a verb in Alice's Adventures in Wonderland and Through the Looking-glass, but not as an adjective.