Consistent \Con*sist"ent\, a. [L. consistens, p. pr.: cf. F. consistant.]

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.

Source: Webster's Revised Unabridged Dictionary (1913)