← DefinitionshareGuessasphyxiatingverbPresent participle of asphyxiate: causing someone or something to die or become unconscious by depriving them of air.adjectiveCausing or likely to cause suffocation; extremely stuffy or suffocating.SynonymschokingadjectiveairlessadjectivesuffocatingadjectivesmotheringadjectivestiflingadjectiveAntonymsbreathableadjective