adjective🔗ShareInsusceptible, no susceptibleNot susceptible."Because he had already caught the flu twice this winter, the doctor said he was now insusceptible to that particular strain. "Debido a que ya había contraído la gripe dos veces este invierno, el médico dijo que ahora era insusceptible a esa cepa en particular.medicinephysiologybiologyChat with AIVocabulary GamePractice Reading