Synonyms for Beat one's brains:

• v.

  •speculate (verb)
  • dope out,
  • suppose,
  • hazard a guess,
  • read between lines,
  • figure out,
  • have a hunch,
  • surmise,
  • size up,
  • suspect,
  • psych out,
  • pipe-dream.

• Other synonyms:

  •Other relevant words:
  • speculate.

Antonyms for Beat one's brains:

• v.

  • hypothesize
    discard.
  • speculate
    disregard, dismiss, abstain, ignore, know, neglect, forget.