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.

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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

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noun

1. archaic a great depth; abyss

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” ( 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.

Example Sentences

The independent review said the circumstances of what happened had "involved a complex intersection of disability, live broadcast risk and the use of language with a profound and painful historical context".

From BBC • Apr. 10, 2026

The crew of four — in the dim green glow of their spacecraft, with no more elbow room than a Sprinter van — entered a profound solitude few have ever experienced.

From Los Angeles Times • Apr. 9, 2026

For India, the shock of the Iran war has been profound.

From The Wall Street Journal • Apr. 6, 2026

"These figures must lead us to a profound, thorough reappraisal," he added.

From Barron's • Apr. 3, 2026

These long millennia may well have witnessed wars and revolutions, ecstatic religious movements, profound philosophical theories, incomparable artistic masterpieces.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

Related Words

• abject
• absolute
• acute
• deep
• deep-seated
• extensive
• extreme
• far-reaching
• great
• heartfelt
• sincere
• thorough
• utter