- susceptible to debate, challenge, or doubt; questionable: Whether this is the best plan of action or not is arguable.
- susceptible to being supported by convincing or persuasive argument: Admirers agree that it is arguable he is the finest pianist of his generation.
- (sentence modifier) it can be argued that
- capable of being disputed; doubtful
- capable of being supported by argument; plausible
“as may be shown by argument,” 1890, from+ (2).
1610s, from+ .