Pronunciation: /ˈmɜrsɪlɪs/
adjective showing no mercy; cruel or pitiless
A1 The teacher was merciless in giving out homework.
A2 The storm was merciless, destroying everything in its path.
B1 The dictator ruled with a merciless hand, crushing any opposition.
B2 The judge handed down a merciless sentence to the criminal.
C1 The ruthless CEO was known for his merciless business tactics.
C2 The assassin was known for his merciless efficiency in carrying out his missions.
formal The dictator ruled with a merciless hand, showing no mercy to those who opposed him.
informal The teacher's strict grading policy was merciless, leaving no room for error.
slang The boss's criticism was absolutely merciless, he didn't hold back at all.
figurative The storm raged on with a merciless fury, destroying everything in its path.
mercilessed
mercilesses
more merciless
most merciless
mercilesses
will be merciless
have been merciless
is being merciless
merciless
merciless
to be merciless
mercilessing
mercilessed