1. arguable(s = adj.all) - capable of being supported by argument;
Derived form verb argue1
2. arguable(s = adj.all) debatable, disputable, moot - open to argument or debate; "that is a moot question"
Capable of being argued; admitting of debate. [1913 Webster]
arguable, adj.
1 that may be argued or reasonably proposed.
2 reasonable; supported by argument.
Derivative:
arguably adv.