frontlet vs frontal

frontlet and frontal both are nouns.

Word	Noun	Adjective	Verb	Adverb
frontlet	Yes	No	No	No
frontal	Yes	Yes	No	No

As nouns, frontlet and frontal are synonyms defined as:

frontlet (noun)	frontal (noun)
an adornment worn on the forehead	an adornment worn on the forehead
	a drapery that covers the front of an altar
	the face or front of a building

frontlet (adjective)	frontal (adjective)
	of or relating to the front of an advancing mass of air
	meeting front to front
	belonging to the front part
	of or adjacent to the forehead or frontal bone