to-and-fro
Pendulum's repeated path
To-and-fro describes movement back and forth between two points, often repeated or continuous: the to-and-fro of commuters on the platform, a to-and-fro motion.
As a noun, it names such movement or exchange: the to-and-fro of negotiation.
The phrase suggests rhythm or regularity rather than random wandering.
Repeated back-and-forth movement
- swingSuspended recreational seat
- swayingRhythmic lateral movement
- rockingOscillating on curved base
- pendulumSuspended swinging weight
back-and-forth · bobbing · undulation · vibration · swinging · shuttling · reciprocation · fluctuation
Inability to choose
- waveringShowing unsteady resolve
- hesitationDelay from uncertainty
- ambivalenceConflicting emotions coexisting
- ditheringProlonged indecisive hesitation
uncertainty · equivocation · waffling · flip-flopping · irresolution · indecisiveness · deliberation · second-guessing
oscillation
Repeated back-and-forth movement
pendulum · back-and-forth · bobbing · undulation · vibration · swinging · shuttling · reciprocation · fluctuation · wavering
vacillation
Inability to choose
- waveringShowing unsteady resolve
- hesitationDelay from uncertainty
- ambivalenceConflicting emotions coexisting
dithering · uncertainty · equivocation · waffling · flip-flopping · irresolution · indecisiveness · deliberation · second-guessing · hemming and hawing
to-and-froone-way
Permitting single direction travel
unidirectional · straight ahead · forward · linear · direct