meddling vs meddlesome

meddling is a noun but meddlesome is not a noun.

Word	Noun	Adjective	Verb	Adverb
meddling	Yes	Yes	No	No
meddlesome	No	Yes	No	No

As adjectives, meddling and meddlesome are synonyms defined as:

Other synonyms of meddling include busy, busybodied, interfering, officious.

meddling (noun)	meddlesome (noun)
the act of altering something secretly or improperly

meddling (adjective)	meddlesome (adjective)
intrusive in a meddling or offensive manner	intrusive in a meddling or offensive manner