Main entry: painless
Definition: not causing physical or psychological pain
Usage: painless dentistry
Antonyms: painful
Definition: causing physical or psychological pain
Main entry: painless
Definition: requiring little hard work or exertion
Usage: a painless solution to the problem
Definition: not easy; requiring great physical or mental effort to accomplish or comprehend or endure
Antonyms: uneasy
Definition: lacking a sense of security or affording no ease or reassurance