English Reference
adjective

phenomenal

adj.
US /fəˈnɑmənəɫ/ UK /fɪnˈɒmɪnəl/ phe·nom·e·nal

  1. 01 B2 Upper Intermediate Informal

    extremely successful, large, or impressive.

    highly extraordinary or remarkable; often used to describe exceptional performance or scale.

    Simple

    The young pianist gave a phenomenal performance that left the audience in tears.

    In context

    The company has seen phenomenal growth over the last fiscal year, outperforming even the most optimistic market projections.

    Usage

    often used as an intensifier for success or talent.

  2. 02 C1 Advanced AcademicTechnical Science

    relating to things that you can see, hear, or feel directly.

    perceptible by the senses through immediate experience; relating to the appearance of things rather than their independent reality.

    Simple

    Scientists study phenomenal data to understand how the brain processes light.

    In context

    The study focused on the phenomenal aspects of consciousness, specifically how individuals report their subjective experience of colour.

    Usage

    frequently appears in scientific or psychological contexts regarding observation.

    perceptiblesensoryobservable
    noumenaltheoretical
  3. 03 C2 Proficiency AcademicFormal Philosophy

    relating to how the world appears to us, rather than how it actually is.

    pertaining to the appearance of the world as opposed to the ultimate nature of reality as it exists in itself.

    Simple

    In philosophy class, we discussed the difference between the phenomenal world and reality.

    In context

    Kant argued that we can only ever know the phenomenal world, as the 'thing-in-itself' remains forever inaccessible to human reason.

    Usage

    specifically used in Kantian philosophy to distinguish from the 'noumenal' world.

It’s a phenomenal achievement – I don’t know how she did it.

The Guardian· 14 Aug 2026

From phenomenon + -al, after French phénoménal.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin French phénoménal
Level B2 · Upper Intermediate
Frequency Frequent
Updated