ho-hum vs wearisome

ho-hum and wearisome both are adjectives.

Word	Noun	Adjective	Verb	Adverb
ho-hum	No	Yes	No	No
wearisome	No	Yes	No	No

As adjectives, ho-hum and wearisome are synonyms defined as:

ho-hum and wearisome: so lacking in interest as to cause mental weariness

Other synonyms of ho-hum include boring, deadening, dull, irksome, slow, tedious, tiresome.

ho-hum (adjective)	wearisome (adjective)
so lacking in interest as to cause mental weariness	so lacking in interest as to cause mental weariness