noun, feminine/kawaiθiˈdad/
kawaiiness, cuteness
“Resulta que en el TGS, al contrario que otras ferias videojueguiles (como el E3) se pueden comprar algunas cosas. Entre ellas, este tremebundamente awesome peluche de Okami que viene a ser algo así como la kawaicidad concentrada.” — As it turns out, at TGS, unlike other videogame conferences (such as E3), you can buy merchandise. Among other things, there is this incredibly awesome plushie of Okami, which is basically kawaiiness itself in concentrated form.
kawaii + -idad, derived from Japanese 可愛い (kawaii, “lovable; cute”). The use of -c- is analogical to words such as simplicidad, derived from simple.