I'm writing a paragraph comparing working and volunteering and I'm looking for a word to say that a person will be compensated if he is an employee but a volunteer won't, what is the best word that fits? working is ______ but volunteering is not. I found the word 'compensative' but I don't think it's correct to use it.
Perhaps "remunerated" fits the bill? From M-W online: "to pay an equivalent for". For example: "their services were generously remunerated".
"Compensated" would fit as well.
Maybe paid is the word you are looking for. Working is paid but volunteering is not. To do paid work, to do unpaid work i.e. volunteering. Volunteer work is unpaid by definition. There isn't really a need to describe it.