capillary vs hairlike

capillary is a noun but hairlike is not a noun.

Word	Noun	Adjective	Verb	Adverb
capillary	Yes	Yes	No	No
hairlike	No	Yes	No	No

As adjectives, capillary and hairlike are synonyms defined as:

capillary and hairlike: long and slender with a very small internal diameter

capillary (noun)	hairlike (noun)
a tube of small internal diameter; holds liquid by capillary action
any of the minute blood vessels connecting arterioles with venules

capillary (adjective)	hairlike (adjective)
of or relating to hair	long and slender with a very small internal diameter
long and slender with a very small internal diameter