sulfurous vs sulphurous

sulfurous and sulphurous both are adjectives.

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

As adjectives, sulfurous and sulphurous are synonyms defined as:

sulfurous and sulphurous: of or related to or containing sulfur or derived from sulfur

As adjectives, sulfurous and sulphurous are synonyms defined as:

Other synonyms of sulfurous include stifling, sultry.

As adjectives, sulfurous and sulphurous are synonyms defined as:

Other synonyms of sulfurous include acerb, acerbic, acid, acrid, bitter, blistering, caustic, virulent, vitriolic.

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