sulphurous vs sultry

sulphurous and sultry both are adjectives.

Word	Noun	Adjective	Verb	Adverb
sulphurous	No	Yes	No	No
sultry	No	Yes	No	No

As adjectives, sulphurous and sultry are synonyms defined as:

Other synonyms of sulphurous include stifling, sulfurous.

sulphurous (adjective)	sultry (adjective)
of or related to or containing sulfur or derived from sulfur	characterized by oppressive heat and humidity
characterized by oppressive heat and humidity	sexually exciting or gratifying
harsh or corrosive in tone