Adversive is a word that is often used to describe something that is unfavorable or unpleasant. Synonyms for adversive include hostile, antagonistic, disagreeable, unwelcome, negative, and unlikable. Other similar words include adverse, adverse, unfavorable, hindering, and disadvantageous. These words are often used in the context of describing a situation or circumstance that is difficult or unpleasant to deal with. Whether you are describing a person, a place, or a circumstance, there are many different ways to express the idea of something being adversive or unfavorable. By considering the many different synonyms for adversive, you can more effectively communicate your thoughts and ideas to others.