deadly sin noun
plural deadly sins
plural deadly sins
Learner's definition of DEADLY SIN
[count]
: one of seven sins that in the Christian religion are considered to be very serious and are believed to cause other sins七宗罪之一，大罪（基督教中指罪恶之根源） ◊ The seven deadly sins are usually considered to be pride, envy, lust, gluttony, greed, anger, and sloth.七宗罪通常是指傲慢、嫉妒、淫邪、贪食、贪婪、愤怒和懒惰。