filamentlike vs filamentous

filamentlike and filamentous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
filamentlike	No	Yes	No	No
filamentous	No	Yes	No	No

As adjectives, filamentlike and filamentous are synonyms defined as:

Other synonyms of filamentlike include filiform, threadlike, thready.

filamentlike (adjective)	filamentous (adjective)
thin in diameter; resembling a thread	thin in diameter; resembling a thread