deadbeat /ˈdɛdbiːt/adjective 5noun 3forms 1phrases 1 adjective5 •Defaulting on one's debts. •(disapproving) Lazy or irresponsible. •Defeated or exhausted. •Dead tired. •Having a damped needle that stops without oscillation. noun3 •a lazy, irresponsible person who often has no job and expects other people to give them money to live on •a person who keeps avoiding paying their debts and is seen by others as dishonest for this •(slang) A customer who pays their credit card or loan balance in full and on time each month, thereby incurring no interest charges. (Compare revolver, who carries a balance and pays interest.) formsdeadbeats Phrases with deadbeat deadbeat dadA man, especially one who is divorced or estranged from his partner, who fails to provide monetary child support when he is legally required to do so.