Expansive \Ex*pan"sive\, a. [Cf. F. expansif.]

Having a capacity or tendency to expand or dilate; diffusive; of much expanse; wide-extending; as, the expansive force of heat; the expansive quality of air.

A more expansive and generous compassion. --Eustace.

His forehead was broad and expansive. --Prescott. -- Ex*pan"sive*ly, adv. -Ex*pan"sive*ness, n.

Source: Webster's Revised Unabridged Dictionary (1913)