stationary
adj.-
1 not moving (adj.) B2 Upper Intermediatestaying in one place and not moving.
standing still; not moving or not intended to be moved.
ExampleThe car remained stationary at the red light for several minutes.
ExampleThe truck collided with a stationary vehicle that had broken down in the middle of the highway during the storm.
PitfallI need to buy some new stationary for my office.I need to buy some new stationery for my office.Use 'stationary' for things that don't move. Use 'stationery' (with an 'e') for paper and envelopes.
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2 unchanging (adj.) C1 Advanced Academic Formalstaying at the same level or in the same condition.
not changing in condition, value, or quantity; remaining at a stable level.
ExampleThe population of the small village has remained stationary for ten years.
ExampleEconomic indicators suggest that prices will remain stationary throughout the next quarter, providing some relief to consumers.
UsageOften used in academic or technical reports to describe data that does not trend upward or downward.
From Latin stationarius, from statio, ultimately from stō (“to stand”). Doublet of stationer.