Consistent

Part of speech: adjective (a.)

1. Possessing firmness or fixedness; firm; hard; solid. The humoral and consistent parts of the body. Harvey.

2. Having agreement with itself or with something else; having harmony among its parts; possesing unity; accordant; harmonious; congruous; compatible; uniform; not contradictory. Show me one that has it in his power To act consistent with himself an hour. Pope. With reference to such a lord, to serve and to be free are terms not consistent only, but equivalent. South.

3. Living or acting in conformity with one's belief or professions. It was utterly to be at once a consistent Quaker and a conspirator. Macaulay.