Synonyms for painless

Adjective

1. painless, easy (vs. difficult)

usage: requiring little hard work or exertion; "a painless solution to the problem"

2. painless (vs. painful), pain-free, unpainful, harmless

usage: not causing physical or psychological pain; "painless dentistry"

3. painless, humane (vs. inhumane)

usage: with as little pain as possible; "a humanely painless killing"