The word "浓妆艳抹" is formed by combining two parallel two-character phrases: "浓妆" and "艳抹". In "浓妆", the adjective "浓" (thick) modifies the noun "妆" (makeup), meaning "heavy makeup". In "艳抹", the adjective "艳" (gorgeous) modifies the verb "抹" (to apply), meaning "applying makeup brightly". Together, they create a compound that emphasizes the act of applying makeup in a heavy and vivid manner.