approximativeness

from The Collaborative International Dictionary of English v.0.48

Approximative \Ap*prox"i*ma*tive\, a. [Cf. F. approximatif.]
   Approaching; approximate. -- {Ap*prox"i*ma*tive*ly}, adv. --
   {Ap*prox"i*ma*tive*ness}, n.
   [1913 Webster]