Synonyms for To and fro:

• adv.

  •back and forth (adverb)
  • to fro,
  • back forth,
  • from side side,
  • from pillar post,
  • backwards forwards,
  • in out,
  • up down.
  •backward and forward (adverb)
  • back and forth.

• n.

  •
  • about,
  • Undulating,
  • hither and thither.
  •
  • wiggle,
  • quiver,
  • oscillation,
  • shake,
  • vibration,
  • roll,
  • sway,
  • wobble,
  • Shilly-shally,
  • decide,
  • toing and froing,
  • pause,
  • timidity,
  • bounce.
  •
  • hitch and hike,
  • round and round,
  • like buckets in a well,
  • off-and-on.

• Other synonyms:

  •
  • indecisiveness,
  • irresolution,
  • two-way,
  • heaving,
  • tentativeness,
  • irresoluteness.
  •
  • hesitancy,
  • vacillation,
  • indecision,
  • timidness,
  • hesitation.
  •Other relevant words:
  • vice versa,
  • Make and break,
  • every other,
  • in turn,
  • Shuttlewise,
  • mutatis mutandis,
  • unsteadily,
  • alternately,
  • Inconstantly,
  • Desultorily,
  • Changeably,
  • on and off,
  • reciprocally,
  • far and wide,
  • variably,
  • capriciously,
  • in rotation,
  • by turns,
  • erratically,
  • Unsteadfastly,
  • uncertainly,
  • in turns,
  • Waveringly.