资料来源 : pyDict

可允许的,正当的,可承认的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Allowable \Al*low"a*ble\, a. [F. allouable.]
   1. Praiseworthy; laudable. [Obs.] --Hacket.

   2. Proper to be, or capable of being, allowed; permissible;
      admissible; not forbidden; not unlawful or improper; as, a
      certain degree of freedom is allowable among friends.

资料来源 : WordNet®

allowable
     adj 1: deductible according to the tax laws
     2: deserving to be allowed or considered
     3: possible to allow; "a degree of freedom allowable among
        friends" [syn: {permitted}]