Synonyms of painless in English:

painless


See definition of painless

adjective

1‘any killing of animals should be painless’

SYNONYMS
pain-free, under anaesthetic
ANTONYMS

painful

2‘getting rid of him proved painless’

SYNONYMS
easy, trouble-free, effortless, undemanding, unexacting, simple, uncomplicated, smooth, plain sailing
informal as easy as pie, as easy as falling off a log, as easy as ABC, a piece of cake, child's play, a cinch
dated a snip
ANTONYMS

difficult, demanding