African lily af·ri·can·lily uncommon noun 1. African plant with bright green evergreen leaves and umbels of many usually deep violet-blue flowers SynonymsAfrican lilyAfrican tulipblue African lilyAgapanthus africanus Related words Broader terms agapanthus Parts genus Agapanthus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.