The Collaborative International Dictionary
Painlessness
Painless \Pain"less\, a. Free from pain; without pain. -- Pain"less*ly, adv. -- Pain"less*ness, n.
Wiktionary
painlessness
n. The quality of being painless.
Usage examples of "painlessness".
It asks society neither to approve of everything, nor to condemn everything, but to draw a line between experiments that, by reason of utility and painlessness, are entirely permissible, and others which ought assuredly to be condemned.