A dilemma is a situation that makes problems, often one in which you have to make a very difficult choice between things of equal importance. Learn how to use this word in different contexts, idioms and collocations with Oxford Advanced Learner's Dictionary. Definition of Dilemma in the Definitions.net dictionary. Meaning of Dilemma . What does Dilemma mean? Information and translations of Dilemma in the most comprehensive dictionary definitions resource on the web. Master the word " DILEMMA " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. The meaning of DILEMMA is a usually undesirable or unpleasant choice. How to use dilemma in a sentence. Usage of Dilemma : Usage Guide.