Antonyms for the word "taxiing", meaning the movement of an aircraft on the ground under its own power, include words such as "stationary", "still", "immobile", "motionless", "static" and "parked". While the act of "taxiing" is essential for an airplane to move from its starting position to the runway, the opposite of this movement would signify a state of stillness or immobility. Other related antonyms include "anchored", "moored", "stopped" and "halted". The opposite of "taxiing" represents a state of stability, fixedness, or non-movement in contrast to the active, fluid movement of an aircraft when it taxis.