Synonyms and Antonyms for perpetual-motion

1. perpetual motion (n.)

motion that continues indefinitely without any external source of energy; impossible in practice because of friction

Synonyms: Antonyms:

2. perpetual (adj.)

continuing forever or indefinitely

Synonyms: Antonyms:

3. perpetual (adj.)

uninterrupted in time and indefinitely long continuing

Synonyms: Antonyms:

4. motion (n.)

the use of movements (especially of the hands) to communicate familiar or prearranged signals

Synonyms: Antonyms:

10. motion (n.)

a formal proposal for action made to a deliberative assembly for discussion and vote

Synonyms: Antonyms:
x