fearless vs unafraid

fearless and unafraid both are adjectives.

Word	Noun	Adjective	Verb	Adverb
fearless	No	Yes	No	No
unafraid	No	Yes	No	No

As adjectives, fearless and unafraid are synonyms defined as:

fearless and unafraid: oblivious of dangers or perils or calmly resolute in facing them

fearless (adjective)	unafraid (adjective)
oblivious of dangers or perils or calmly resolute in facing them	oblivious of dangers or perils or calmly resolute in facing them
invulnerable to fear or intimidation	free from fear or doubt; easy in mind