Merciless

/ˈmɜːrsɪləs/

Meaning & Definition

adjective
Showing no mercy or compassion; ruthless.
The merciless storm ravaged the coast, leaving destruction in its wake.
Having no pity or compassion for others; cruel.
He faced a merciless critic in the review, whose harsh words left him discouraged.
Severe or extreme in nature or effect.
The merciless heat of the desert can be unbearable for unprepared travelers.

Etymology

Middle English, from 'mercy' + '-less' indicating 'without mercy'.

Common Phrases and Expressions

merciless war:
A war characterized by extreme violence and lack of pity.
merciless competition:
A situation where competitors are intensely harsh and unforgiving.
merciless critic:
A critic who is extremely harsh and unkind in their assessments.

Related Words

Slang Meanings

Brutal
That workout was brutal; the trainer was totally merciless.
Unforgiving
His merciless attitude in negotiation left no room for compromise.