From Longman Dictionary of Contemporary Englishpainlesspain‧less /ˈpeɪnləs/ ●○○ adjective 1 PAINcausing no pain OPP painful a painless death2 EASYnot difficult or unpleasant to do OPP painful The train is a quick and painless way to travel. The interview was relatively painless.► see thesaurus at easy —painlessly adverb
Examples from the Corpus
painless• It took 10-15 minutes and was completely painless.• The operation is simple and painless.• But this revolutionary change will not be painless.• Rasping is entirely painless and many horses even appear to enjoy the experience.• Herewith, a few thoughts on how to render the experience as painless as possible.• Although a few had had quick and relatively painless births, many had found it a very painful experience.• I know that for millions of women it must be an easy, painless decision.• Iridology, sometimes referred to as iris diagnosis, is a non-invasive, painless diagnostic technique, according to practitioners.• a painless trip to the dentist• a painless way to learn a foreign language• Indeed, economic development programs at times were portrayed as painless ways to help the poor.relatively painless• To be honest, it was relatively painless.• Dinner itself was a relatively painless affair.• The sores are usually relatively painless, and this procedure, like the urethral investigation, need give no cause for alarm.• Although a few had had quick and relatively painless births, many had found it a very painful experience. 