painless
adjective /ˈpeɪnləs/
  /ˈpeɪnləs/
 - causing you no pain无痛的 - a painless death无痛死亡 
- The treatment is painless.这种治疗无疼痛。 
 Collocations Dictionaryverbs- be
 - completely
- totally
- fairly
- …
 
- a painless death
- not unpleasant or difficult to do愉快的;轻松的;不难的;不讨厌的 - The interview was relatively painless.此次面试相对轻松。 
 Collocations Dictionaryverbs- be
 - completely
- totally
- fairly
- …
 
- The interview was relatively painless.