Painless

Antonyms for painless:

difficult, demanding, formidable, oppressive, effortful, painful, murderous, arduous, hard, laborious, trying.

Synonyms for painless:

Sense 1

insensate, insensitive, insensible, comfortably, numbing.

Sense 2

analgesia, anesthesia.

Sense 3

comfortable.

Sense 4

numb.

Sense 8

dead.

Other synonyms and related words:

downhill, effortless, soft, snap, cheap, facile, fluid, dead, comfortable, numbing, numb, smooth, light, insensitive, fluent, analgesia, simple, hands down, ready, insensible.

easy (adjective)

facile, effortless, light, snap, smooth, simple.

effortless (adjective)

fluent.

harmless (adjective)

soft.

nothing to it (adjective)

easy.

Sense 2 (noun)

insensitive, numbing, insensible, dead, comfortable, analgesia, numb.

painless (noun)

unpainful, pain-free, easy, humane.

Usage examples for painless:

• He had expected the quick, painless death, which his guest had died under his own roof at Heath Hover- but this! - "The Heath Hover Mystery", Bertram Mitford.
• She scornfully dismissed the grieving owner of Fido from her consideration, for it was obvious that anyone with even passable mental equipment would not have been disturbed by the accidental and painless removal of a bull pup. - "Flower of the Dusk", Myrtle Reed.
• A rare few of these because they are so richly endowed with maternal potence that the subconscious processes have remained, as Nature doubtless intended, for the most part subconscious and painless. - "Feminism and Sex-Extinction", Arabella Kenealy.