English for R&Dcourse

English for R&Dcourse

careless

careless★
/ˈkɛrləs/
adjective
careless★adjective
/ˈkɛrləs/небрежный
not careful; done without enough thought or attention
  • He is a careless driver.
  • That was a careless mistake.
From the textBut the projectionist was careless and the film caught fire.