[ahr-gyoo-uh-buh
l] 
| 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. |
| un·ar·gu·a·ble (ŭn-är'gyōō-ə-bəl) adj. Not open to argument or further discussion: the plain, unarguable facts. un·ar'gu·a·bly adv. |