//nO-va-'tUr-E-ent// Although this word has not yet been listed in Merriam-Webster and Oxford English Dictionary but it has been used by many writers to describe someone/ something that desires change or alterations. This word has its Latin roots from the words nova which means new and turire which means the desire to/for. Literally meaning the desire for something new. @ravivora
Insouciant - free from concern, worry, or anxiety. Origin Insouciant entered English from French, based on the French verb soucier meaning "to worry." Ultimately it finds its roots in the Latin sollicitāre meaning "to disturb."