inexorable vs unforgiving

inexorable and unforgiving both are adjectives.

Word	Noun	Adjective	Verb	Adverb
inexorable	No	Yes	No	No
unforgiving	No	Yes	No	No

As adjectives, inexorable and unforgiving are synonyms defined as:

inexorable and unforgiving: not to be placated or appeased or moved by entreaty

Other synonyms of inexorable include grim, relentless, stern, unappeasable, unrelenting.

inexorable (adjective)	unforgiving (adjective)
not to be placated or appeased or moved by entreaty	unwilling or unable to forgive or show mercy
impervious to pleas, persuasion, requests, reason	not to be placated or appeased or moved by entreaty