alfresco /ælˈfɹɛs.koʊ/adverb 2adjective 1 adverb2 •Outdoors; in fresh air.As it was a sunny afternoon, we decided to dine alfresco on the patio. •Onto fresh plaster that is still moist. adjective1 •Outdoor, open to the atmosphere.The walking district features many alfresco cafés.