没事儿

沒事兒
méishìr
  1. to have spare time
  2. free from work
  3. it's not important
  4. it's nothing
  5. never mind

CEDICT

Entry Composition

1 没事 méishì
  1. it's not important
  2. it's nothing
  3. never mind
  4. to have nothing to do
  5. to be free
  6. to be all right (out of danger or trouble)
2 儿 r
  1. non-syllabic diminutive suffix
  2. retroflex final