Definition for Probably:

• In a probable manner.

Synonyms for Probably:

• adv.

  •likely to happen (adverb)
  • perchance,
  • perhaps,
  • reasonably,
  • seemingly,
  • practicably,
  • maybe,
  • no doubt,
  • as the case may be,
  • feasibly,
  • most likely,
  • dollars to doughnuts,
  • one can assume,
  • expediently,
  • like enough,
  • believably,
  • as likely as not.
  •probably (adverb)
  • aptly,
  • likely.

• adv

  •absolutely (adverb)
  • Doubtlessly.

• n.

  •
  • bound,
  • good,
  • probable,
  • certain,
  • guaranteed.

Antonyms for Probably:

• adv.

  • likely to happen
    uncertain, improbably, unlikely.
  • Other antonyms:
    implausibly, incredibly, unthinkably, inconceivably, unbelievably.