slacker
n. countable B2 Upper Intermediate US //ˈsɫækɝ// UK //slˈækɐ// slack·er
n. someone who does not work hard or is lazy. You use this word to describe a person who avoids doing their duties or responsibilities.
n. a person who is lazy or avoids work. Informal in register; often carries a derogatory or dismissive tone.
He is a total slacker who never finishes his homework.
The manager warned the slacker that if he did not meet his sales targets, he would be fired.
While some viewed the student as a slacker for skipping classes, others argued he was simply waiting for a more interesting project to come along.
From slack + -er; compare especially slack off.