Relentless Synonyms
86 relentless synonyms include persistent, continuing, constant, continual, continuous, non-stop, lasting, never-ending, steady, and uninterrupted. Relentless is an adjective, and its antonyms are short-lived, irresolute, and intermittent. Here are some additional synonyms for "relentless" with example sentences.
Another word for Relentless
86 other ways to say relentless.
1. constant
- unwavering
- untiring
- unswerving
- unstoppable
- unremitting
- unrelieved
- unrelenting
- uninterrupted
- unflagging
- unfaltering
- unending
- undeviating
- unceasing
- unbroken
- unabating
- unabated
- tireless
- tenacious
- sustained
- stubborn
- steady
- single-minded
- sedulous
- resolute
- purposeful
- pertinacious
- persistent
- persevering
- perpetual
- patient
- obstinate
- obdurate
- non-stop
- never-ending
- lasting
- intransigent
- interminable
- insistent
- indefatigable
- incessant
- importunate
- endless
- dogged
- diligent
- determined
- continuous
- continuing
- continual
- constant
- assiduous
2. fierce
- with a heart of stone
- unyielding
- unsympathetic
- unsparing
- unpitying
- unmoved
- unmerciful
- unforgiving
- unfeeling
- uncompromising
- uncharitable
- uncaring
- unbending
- strict
- stony-hearted
- stony
- severe
- ruthless
- remorseless
- punishing
- pitiless
- obdurate
- merciless
- lacking compassion
- inflexible
- inexorable
- implacable
- heartless
- harsh
- hard-hearted
- hard
- grim
- fierce
- cruel
- cold-hearted
- cold-blooded
Use relentless in a Sentence
Her efforts were relentless today.
They faced relentless financial struggles.