adj lacking ability; unable.
2. disable ·vt to deprive of legal right or qualification; to render legally incapable.
3. disable ·vt to deprive of that which gives value or estimation; to declare lacking in competency; to disparage; to undervalue.
4. disable ·vt to render unable or incapable; to destroy the force, vigor, or power of action of; to deprive of competent physical or intellectual power; to incapacitate; to disqualify; to make incompetent or unfit for service; to impair.