Synonyms for Turn over new leaf:

• v.

  •go straight (verb)
  • be honorable,
  • go legit,
  • turn over a new leaf,
  • walk the straight and narrow,
  • mend one's ways.
  •modify (verb)
  • reorganize,
  • correct,
  • remodel,
  • redo,
  • become,
  • repair,
  • convert,
  • rework,
  • customize,
  • mutate,
  • revise,
  • adjust,
  • transmute,
  • turn,
  • transmogrify,
  • reform,
  • adapt,
  • vary,
  • doctor.
  •progress (verb)
  • better,
  • gain,
  • become better,
  • grow,
  • upgrade,
  • truck,
  • increase,
  • mature,
  • straighten up,
  • ameliorate,
  • blossom,
  • make first rate,
  • shape up,
  • develop,
  • boost.
  •redress (verb)
  • counteract,
  • regulate,
  • ease,
  • square,
  • restore,
  • remedy,
  • make restitution,
  • negative,
  • recompense,
  • compensate,
  • balance,
  • negate,
  • annul,
  • neutralize,
  • amend,
  • mend,
  • relieve,
  • vindicate,
  • frustrate,
  • cancel.
  •reform (verb)
  • rebuild,
  • standardize,
  • cure,
  • go straight,
  • remake,
  • reclaim,
  • regenerate,
  • redeem,
  • renovate,
  • rehabilitate,
  • clean up,
  • rearrange,
  • change one's ways,
  • resolve,
  • swear off,
  • reconstitute,
  • emend,
  • bring up to code,
  • uplift,
  • improve,
  • clean up one's act.
  •transform (verb)
  • mold,
  • reconstruct,
  • switch,
  • commute,
  • revamp,
  • transfer,
  • transpose,
  • translate,
  • cook,
  • renew,
  • alter,
  • revolutionize.

• Other synonyms:

  •progress
  • straightened up,
  • straightens up.

Antonyms for Turn over new leaf:

• v.

  • modify
    leave alone, stagnate.
  • progress
    deteriorate, decrease, retrogress, decline.
  • redress
    worsen.
  • reform
    hurt, impair.
  • transform
    preserve.