Meaning of STATIONARY in English
1》 not moving.
2》 not changing in quantity or condition.
ME: from L. stationarius , from statio(n-) (see station ).
The words ~ and stationery are often confused. Stationary is an adjective which means ‘not moving or changing’, as in a car collided with a ~ vehicle , whereas stationery is a noun which means ‘writing materials’, as in I wrote to Ann on the hotel stationery .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004