Synonyms for On a treadmill:

• adj.

  •ceaseless (adjective)
  • perpetual,
  • interminable,
  • everlasting,
  • endless,
  • incessant,
  • amaranthine,
  • nonstop,
  • unremitting,
  • constant,
  • perennial,
  • untiring,
  • unceasing,
  • uninterrupted,
  • unending,
  • continual,
  • indefatigable.
  •continuous (adjective)
  • timeless,
  • no end to,
  • extended,
  • repeated,
  • prolonged,
  • unbroken,
  • unfaltering,
  • no end of,
  • consecutive,
  • undivided,
  • stable,
  • connected,
  • steady,
  • looped,
  • regular,
  • for ever and ever,
  • continued.
  •futile (adjective)
  • delusive,
  • hollow,
  • unproductive,
  • empty,
  • unimportant,
  • ineffectual,
  • unsatisfactory,
  • barren,
  • useless,
  • otiose,
  • unprofitable,
  • nugatory,
  • unreal,
  • impractical,
  • unneeded,
  • valueless,
  • unsubstantial,
  • forlorn,
  • impracticable,
  • worthless,
  • unsuccessful,
  • exhausted,
  • abortive,
  • bootless,
  • fruitless,
  • idle.
  •unavailing (adjective)
  • un-availing,
  • un availing.
  •vain (adjective)
  • slight,
  • inefficacious,
  • not a prayer,
  • petty,
  • puny,
  • frivolous,
  • senseless,
  • paltry,
  • in vicious circle,
  • insignificant,
  • going nowhere,
  • shuck,
  • no-win,
  • delusory,
  • void,
  • pointless,
  • misleading,
  • Shucker,
  • time-wasting,
  • unnotable.

• Other synonyms:

  •adj.
  • eternal,
  • ineffective,
  • insufficient,
  • profitless,
  • sterile,
  • trifling,
  • trivial,
  • unbound,
  • continuous,
  • day-and-night,
  • futile,
  • in vain,
  • unavailing,
  • vain,
  • Interminate,
  • Resultless,
  • round the clock,
  • longwinded,
  • to no purpose,
  • to no avail,
  • neverending,
  • no dice,
  • spun out,
  • day and night,
  • no avail,
  • no effect,
  • no purpose,
  • non-stop,
  • on treadmill,
  • out the window,
  • save one's breath,
  • strung out,
  • to no effect,
  • world-without-end.

Antonyms for On a treadmill:

• adj.

  • ceaseless
    occasional, concluded, infrequent, stopping, halting, broken, temporary, inconstant, discontinuous, Terminating, intermittent, irregular, ending, Ceasing, transient, terminable, finished, interrupted, completed.
  • continuous
    unfixed, sporadic, imbalanced, wobbly, unsteady, unstable.
  • futile
    hopeful, helpful, profitable, productive, effective, useful, fruitful, worthwhile, valuable, successful.
  • interminable
    limited, ephemeral, finite, bounded, brief.
  • vain
    modest, important, consequential, significant, shy, possible.