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Synonyms

profound

American  
[pruh-found, proh‐] / prəˈfaʊnd, proʊ‐ /

adjective

profounder, profoundest
  1. penetrating or entering deeply into subjects of thought or knowledge; having deep insight or understanding.

    a profound thinker.

    Synonyms:
    sagacious, deep
    Antonyms:
    superficial, shallow
  2. originating in or penetrating to the depths of one's being: profound grief.

  3. being or going far beneath what is superficial, external, or obvious.

    profound insight.

  4. of deep meaning; of great and broadly inclusive significance.

    a profound book.

  5. pervasive or intense; thorough; complete.

    a profound silence.

  6. extending, situated, or originating far down, or far beneath the surface.

    the profound depths of the ocean.

  7. bending or passing far downward; low.

    a profound bow.


noun

Literary.
  1. something that is profound.

  2. the deep sea; ocean.

  3. depth; abyss.

profound British  
/ prəˈfʌndɪtɪ, prəˈfaʊnd /

adjective

  1. penetrating deeply into subjects or ideas

    a profound mind

  2. showing or requiring great knowledge or understanding

    a profound treatise

  3. situated at or extending to a great depth

  4. reaching to or stemming from the depths of one's nature

    profound regret

  5. intense or absolute

    profound silence

  6. thoroughgoing; extensive

    profound changes

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. archaic a great depth; abyss

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • profoundly adverb
  • profoundness noun
  • unprofound adjective

Etymology

Origin of profound

First recorded in 1275–1325; Middle English, from Anglo-French, from Latin profundus “deep, vast,” equivalent to pro- pro- 1 + fundus “bottom” ( see found 1)

Explanation

When you need a word that's deeper than "deep," consider profound. A philosopher is likely to make many profound pronouncements. Profundus literally means "deep" in Latin, and profound had the same meaning when it entered English in the 14th century. But even then, it also meant "figuratively deep" — that is, very great or intense: "The new laws have had a profound impact." Of people, it means "very knowledgeable or insightful," but sometimes when a person tries to sound profound, they're really just giving you superficial knowledge dressed up with big words.

Keep Reading on Vocabulary.com

Vocabulary lists containing profound

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The effect of lighter shoes across longer distances can be profound.

From The Wall Street Journal • Apr. 19, 2026

It was an era of profound institutional confidence—and it is gone.

From Slate • Apr. 16, 2026

The aftermath of his near-death experience, he says, was just as profound.

From Los Angeles Times • Apr. 15, 2026

AI is a meaningful development with profound societal and economic implications.

From MarketWatch • Apr. 15, 2026

Some of it is profound and other bits are rambling and nonsensical, but it is considered a sweet gesture by almost everyone in attendance.

From "The Night Circus" by Erin Morgenstern