suffocating vs smothering

suffocating and smothering both are adjectives.

Word	Noun	Adjective	Verb	Adverb
suffocating	No	Yes	No	No
smothering	No	Yes	No	No

As adjectives, suffocating and smothering are synonyms defined as:

suffocating and smothering: causing difficulty in breathing especially through lack of fresh air and presence of heat

Other synonyms of suffocating include choking, suffocative.

suffocating (adjective)	smothering (adjective)
causing difficulty in breathing especially through lack of fresh air and presence of heat	causing difficulty in breathing especially through lack of fresh air and presence of heat