The meaning of PHENOMENAL is relating to or being a phenomenon. How to use phenomenal in a sentence. Synonym Discussion of Phenomenal.

PHENOMENAL definition: 1. extremely successful or special, especially in a surprising way: 2. extremely successful or…. Learn more.

PHENOMENAL definition: highly extraordinary or prodigious; exceptional. See examples of phenomenal used in a sentence.

Something that is phenomenal is so great or good that it is very unusual indeed.

Definition of phenomenal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

1. extraordinary or prodigious; exceptional: phenomenal speed. 2. of or pertaining to phenomena. 3. of the nature of a phenomenon; cognizable by the senses.

WordReference Random House Learner's Dictionary of American English © 2025 phe•nom•e•nal /fɪˈnɑmənəl/ adj. very remarkable, amazing, wonderful, or extraordinary: enjoyed phenomenal …

There are five meanings listed in OED's entry for the word phenomenal, one of which is labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

The book was a phenomenal [= huge] success.

Phenomenal (adjective): Referring to something extraordinary, remarkable, or exceptional in quality, occurrence, or appearance. It is often used to describe events, actions, or things that …