weeping vs drooping

weeping is a noun but drooping is not a noun.

Word	Noun	Adjective	Verb	Adverb
weeping	Yes	Yes	No	No
drooping	No	Yes	No	No

As adjectives, weeping and drooping are synonyms defined as:

weeping and drooping: having branches or flower heads that bend downward

Other synonyms of weeping include cernuous, nodding, pendulous.

weeping (noun)	drooping (noun)
the process of shedding tears (usually accompanied by sobs or other inarticulate sounds)

weeping (adjective)	drooping (adjective)
showing sorrow	hanging down (as from exhaustion or weakness)
having branches or flower heads that bend downward	weak from exhaustion
	having branches or flower heads that bend downward