1. perpetual
adjective. ['pɝˈpɛtʃuːəl'] continuing forever or indefinitely.
Synonyms
- unceasing
- unending
- ageless
- lasting
- everlasting
- eonian
- eternal
- permanent
Antonyms
- short
- caducous
- mitigated
- reversible
Etymology
- perpetualis (Latin)
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Words that Rhyme with Perpetual Motion
- locomotion
- promotion
- devotion
- demotion
- commotion
- laotian
- emotion
- potion
- notion
- lotion
- kocian
- hoeschen
- bocian
- ocean
Example sentences of the word perpetual-motion
1. Noun Phrase
A perpetual motion drinking bird is powered by the heat differential between its head and tail.
2. Noun Phrase
This law also explains why perpetual motion machines are physically impossible.
2. perpetual
adjective. ['pɝˈpɛtʃuːəl'] uninterrupted in time and indefinitely long continuing.
Synonyms
- constant
- unceasing
- ceaseless
- never-ending
- uninterrupted
- incessant
- unremitting
Antonyms
- eradicable
- unstable
- changeable
- impermanence
Etymology
- perpetualis (Latin)
3. motion
noun. ['ˈmoʊʃən'] the use of movements (especially of the hands) to communicate familiar or prearranged signals.
Synonyms
- facial gesture
- wafture
- sign
- bowing
- high-five
- shrug
- wave
- beck
- waving
- flourish
- gesture
- curtsy
- obeisance
- sign of the cross
- visual communication
- nod
- facial expression
- previous question
- V sign
- bow
- gesticulation
Antonyms
- dishonor
- obscurity
- prominence
- running
Etymology
- motion (Anglo-Norman)
4. motion
noun. ['ˈmoʊʃən'] a natural event that involves a change in the position or location of something.
Synonyms
- recoil
- occurrence
- repercussion
- tectonic movement
- wave
- pedesis
- throw
- approaching
- turning
- whirl
- movement
- squeeze
- stroke
- seek
- jitter
- commotion
- periodic motion
- Brownian movement
- occurrent
- rebound
- bend
- bending
- crustal movement
- deflection
- Brownian motion
- natural event
- passage
- backlash
- deflexion
- heave
- happening
- kick
- twist
- passing
- cam stroke
- wrench
- moving ridge
- change of location
- wring
- wobble
- turn
- travel
- undulation
- periodic movement
Antonyms
- immotility
- let go of
- straight line
- fall
Etymology
- motion (Anglo-Norman)
5. motion
noun. ['ˈmoʊʃən'] a change of position that does not entail a change of location.
Synonyms
- adduction
- headshaking
- sweep
- eurythmics
- retroflection
- fetal movement
- standing
- motility
- wave
- jerking
- eversion
- saccade
- gesture
- reciprocation
- prostration
- inclining
- everting
- shutting
- circumduction
- quiver
- movement
- squatting
- toss
- wiggle
- kneel
- stroke
- wriggle
- squirm
- change
- lurch
- eurhythmics
- retraction
- move
- pitch
- straddle
- squat
- upending
- reclining
- jolt
- kneeling
- kicking
- body English
- inversion
- inclination
- jerk
- closing
- waver
- sitting
- flutter
- foetal movement
- pitching
- disturbance
- opening
- retroflexion
- rotation
- rotary motion
- quivering
- reach
- headshake
- flicker
- dart
- eurythmy
- kick
- abduction
- stretch
- span
- vibration
- eye movement
- flit
- eurhythmy
- posing
- reaching
- agitation
Antonyms
- opening
- dirty
- lose
- normality
Etymology
- motion (Anglo-Norman)
6. motion
noun. ['ˈmoʊʃən'] a state of change.
Synonyms
- state
- quiver
- nonmoving
- unmoving
- trembling
- stream
- vibration
- shakiness
- flow
- moving
- palpitation
- precession
- shaking
- quivering
Antonyms
- motionlessness
- nonmoving
- destabilize
- enable
Etymology
- motion (Anglo-Norman)
7. motion
noun. ['ˈmoʊʃən'] the act of changing location from one place to another.
Synonyms
- approach
- advancement
- locomotion
- forward motion
- onward motion
- descent
- displacement
- maneuver
- lunge
- ascension
- procession
- hurry
- migration
- speed
- slippage
- approaching
- movement
- change
- lurch
- return
- ascent
- slide
- move
- vacillation
- traveling
- following
- crawl
- progression
- swing
- progress
- swinging
- shift
- rush
- play
- ascending
- coming
- coast
- pursuit
- stream
- manoeuvre
- translation
- shifting
- flow
- haste
- rushing
- pursual
- speeding
- rise
- hurrying
- travel
- travelling
- chase
- advance
Antonyms
- inelasticity
- stand still
- open
- defeat
Etymology
- motion (Anglo-Norman)
8. motion
verb. ['ˈmoʊʃən'] show, express or direct through movement.
Synonyms
- sign
- shrug
- communicate
- wave
- hold out
- stretch forth
- gesture
- exsert
- gesticulate
- applaud
- acclaim
- put out
- wink
- extend
- shake
- beckon
- nod
- clap
- intercommunicate
- bless
- cross oneself
- spat
- bow
- stretch out
Antonyms
- loosen
- depersonalize
- dissimilate
- increase
Etymology
- motion (Anglo-Norman)
9. motion
noun. ['ˈmoʊʃən'] a formal proposal for action made to a deliberative assembly for discussion and vote.
Synonyms
- proposal
Antonyms
- impermanent
- irregular
Etymology
- motion (Anglo-Norman)
10. motion
noun. ['ˈmoʊʃən'] an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object.
Synonyms
- apparent motion
- optical illusion
- apparent movement
Antonyms
- wellness
- fearlessness
- disparage
- deconcentrate
Etymology
- motion (Anglo-Norman)