sarcastic UK /sɑːˈkæs.tɪk/US /sɑɹˈkæs.tɪk/ adjective2 •Containing sarcasm.He smiled to himself, and threw a glance of fine sarcastic meaning towards Hepzibah. — 1851 •Having the personality trait of expressing sarcasm. formsmore sarcastic · most sarcastic