The antonyms for the word "un-settles" would be words that imply stability, calmness, and peace of mind. Some of the antonyms could be "settles," "comforts," "soothes," "calms," "relaxes," or "pacifies." These words signify the opposite of the feeling one gets when they feel "un-settled." On the other hand, the synonyms for the word "un-settles" include terms like "disturbs," "agitates," "unsettles," "disarranges," or "disrupts." These words describe the feeling when one is in a state of chaos or discomfort, where everything is uncertain, and there is no sense of calm.