verbal expression vs verbalism

verbal expression and verbalism both are nouns.

Word	Noun	Adjective	Verb	Adverb
verbal expression	Yes	No	No	No
verbalism	Yes	No	No	No

As nouns, verbal expression and verbalism are synonyms defined as:

verbal expression and verbalism: the communication (in speech or writing) of your beliefs or opinions

Other synonyms of verbal expression include expression.

verbal expression (noun)	verbalism (noun)
the communication (in speech or writing) of your beliefs or opinions	the communication (in speech or writing) of your beliefs or opinions
	overabundance of words