IPA: /ˈsteɪʃənɛri/
KK: /ˈsteɪʃəˌnɛri/
Not able to be moved; remaining in one place and not changing position.
The car remained stationary while the traffic light was red.
A person or thing that is not moving or is fixed in place.
The stationary bike in the gym is great for indoor cycling.
Stationary → It is formed from "station" (from Latin "stare", meaning to stand) and the suffix "-ary" (meaning relating to or connected with). The word "stationary" means relating to a state of standing still or not moving.
Think of something that is 'standing' ('stare') and 'relating to' ('-ary') a position of rest — that's why stationary means not moving.