sensitive meaning, definition, what is sensitive : able to understand other people’s feelin...: Learn more. Define sensitive . sensitive synonyms, sensitive pronunciation, sensitive translation, English dictionary definition of sensitive . adj. 1. Capable of perceiving with a sense or senses: Aristotle held that animals have a sensitive soul, but only humans have a rational one. 2. SENSITIVE definition: 1. easily upset by the things people say or do, or causing people to be upset, embarrassed, or…. Learn more. Master the word " SENSITIVE " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.