expectant /ɪkˈspɛktənt/adjective 4noun 1forms 3 adjective4 •Marked by expectation. •Pregnant. •A triage classification for a patient in a mass casualty event with injuries so severe they are unlikely to survive even with maximum medical care.do you agree the patient is expectant, or is there something we can do to save her? •Awaiting the effects of nature, with little active treatment. noun1 •A person who expects or awaits something. formsexpectants · more expectant · most expectant