Correct Answer: Moving

Solution : The correct word will be the first option .

The word stationary denotes not moving. The antonym moving means to move something further in a particular direction in order to make space for somebody or something else.

The meanings of the other words are:

• Immobile: It denotes not moving or not being able to move.
• Permanent: It means lasting for a long time or forever; that will not change.
• Stable: It denotes being steady, firm, and unlikely to change.

Therefore, the correct antonym of stationary will be moving .