The antonyms of the word "un stationary" are the terms that describe something that is not moving or fixed in one place. The opposite of being un stationary is being anchored or stationary. The antonyms of un stationary vary depending upon the context, such as 'steady,' 'immobile,' 'stable,' 'firm,' 'fixed,' 'set,' and 'motionless.' In contrast to the un stationary, when something is stationary, it is stable or remains unchanged in position. Stationary objects do not exhibit any movement, whereas unstable and moveable items get categorized as 'un stationary'. Using antonyms for "un stationary" helps us to define something precisely and convey the right meaning.