postponer

Definitions of postponer
1

n someone who postpones work (especially out of laziness or habitual carelessness)

Synonyms:
cunctator, procrastinator
Type of:
delayer
a person who delays; to put off until later or cause to be late

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.