[ad_1] adjective
  1. susceptible to debate, challenge, or doubt; questionable: Whether this is the best plan of action or not is arguable.
  2. susceptible to being supported by convincing or persuasive argument: Admirers agree that it is arguable he is the finest pianist of his generation.


  1. capable of being disputed; doubtful
  2. capable of being supported by argument; plausible

1610s, from argue + -able.

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