The word "Climatize" means to adapt something to a particular climate or environment. The opposite of this word can be defined as "uncultural". It means something is not suited or adapted to a particular climate or environment. Other antonyms for "climatize" could include "denature", "destabilize", or "devalue", which suggest that something is being made less suitable for its environment. Another opposite could be "disregard", which implies that something is not being adapted to its environment at all. In any case, understanding antonyms helps to expand the meaning of a word and helps in better comprehension of the language.