relentless

As adjectives the difference between relentless and headstrong

is that relentless is unrelenting or unyielding in severity while headstrong is determined to do as one pleases, and not as others want.

As adjectives the difference between relentless and pernicious

is that relentless is unrelenting or unyielding in severity while pernicious is causing much harm in a subtle way.

As adjectives the difference between consistent and relentless

is that consistent is of a regularly occurring, dependable nature while relentless is unrelenting or unyielding in severity.

As a noun consistent

is (in the plural|rare) objects or facts that are coexistent, or in agreement with one another.

As adjectives the difference between tough and relentless

is that tough is strong and resilient; sturdy while relentless is unrelenting or unyielding in severity.

As an interjection tough

is (slang) (used to indicate lack of sympathy).

As a noun tough

is a person who obtains things by force; a thug or bully.

As a verb tough

is to endure.

As an adjective relentless

is unrelenting or unyielding in severity.

As a noun terms is

.

As adjectives the difference between relentless and devoted

is that relentless is unrelenting or unyielding in severity while devoted is vowed; dedicated; consecrated.

As a verb devoted is

(devote).

As an adjective relentless

is unrelenting or unyielding in severity.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As adjectives the difference between perpetual and relentless

is that perpetual is lasting forever, or for an indefinitely long time while relentless is unrelenting or unyielding in severity.

As adjectives the difference between firm and relentless

is that firm is steadfast, secure, hard (in position) while relentless is unrelenting or unyielding in severity.

As a noun firm

is (uk|business) a business partnership; the name under which it trades.

As a verb firm

is to make firm or strong; fix securely.

As adjectives the difference between relentless and false

is that relentless is unrelenting or unyielding in severity while false is (label) one of two states of a boolean variable; logic.