The Collaborative International Dictionary of English v.0.48:
Graduality \Grad"u*al"i*ty\, n. The state of being gradual; gradualness. [R.] --Sir T. Browne. [1913 Webster]WordNet (r) 3.0 (2006):
graduality n 1: the quality of being gradual or of coming about by gradual stages [syn: graduality, gradualness]