† momentaninessObs. [f. next + -ness.] Momentariness. 1634Bp. Hall Char. Man (1635) 35 How doth the momentaninesse of this misery adde to the misery.a1653Gouge Comm.Hebr. x. 25 (1655) ii. 484 As great a difference as is..betwixt momentaninesse and everlastingnesse.