light-haired vs blonde

light-haired is not a noun while blonde is a noun.

Word	Noun	Adjective	Verb	Adverb
light-haired	No	Yes	No	No
blonde	Yes	Yes	No	No

As adjectives, light-haired and blonde are synonyms defined as:

light-haired and blonde: being or having light colored skin and hair and usually blue or grey eyes

Other synonyms of light-haired include blond.

light-haired (noun)	blonde (noun)
	a light grayish yellow to near white
	a female person with fair skin and hair

light-haired (adjective)	blonde (adjective)
being or having light colored skin and hair and usually blue or grey eyes	being or having light colored skin and hair and usually blue or grey eyes