Gargantuan.
I just like the word.

Ooh, we're doing words we like, now?
Methylchloroisothiazolinone

Otherwise.... I have no clue.
Furry?
Intelligent? Annoyable. There we go. Arrogant and "Who-I-am-varies-from-one-given-time-to-another-given-mood" work too, buy yeah...