Have you ever met someone who barely says a word but somehow seems mysteriously interesting? That’s the kind of person we’re talking about when we say “still waters run deep.” This classic English idiom reminds us that silence can hide surprising depth. In this post, we’ll explore the meaning, origin, and everyday examples of this timeless phrase.
Meaning of Still Waters Run Deep
The idiom “still waters run deep” means that quiet or calm people often have rich inner lives, strong emotions, or great intelligence that isn’t immediately obvious.
In simple terms:
People who seem quiet on the surface may have a lot going on underneath.
Possible meanings:
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Someone who doesn’t talk much may be very wise or thoughtful.
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A calm exterior can hide powerful feelings or strong character.
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Don’t underestimate quiet people — they often surprise you.
Quick summary:
👉 “Still waters run deep” = Silent people often have deep minds or strong emotions.
Origin of Still Waters Run Deep
This idiom has been flowing through English for centuries — quite literally!
The phrase comes from the idea that a river or stream that looks calm on the surface may actually be very deep and powerful underneath. The image is both natural and symbolic.
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The earliest recorded use dates back to Roman times. The Latin proverb “altissima quaeque flumina minimo sono labi” means “the deepest rivers flow with least sound.”
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It appeared in English as early as the 15th century and became common in literature and speech.
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One of the most famous mentions is in William Shakespeare’s play Henry VI, Part 2 (1591):
“Smooth runs the water where the brook is deep.”
So, the saying has been reminding people for centuries not to judge others by appearances — or by how loud they are!
Examples in Sentences
Here are some ways to use “still waters run deep” in real life:
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Formal: Our new manager doesn’t say much in meetings, but still waters run deep — her reports are always brilliant.
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Casual: You’d never guess how creative Ben is; still waters run deep!
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Friendly advice: Don’t assume Mia’s shy. Still waters run deep — she’s just observing everything.
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Romantic context: He seems quiet, but still waters run deep — he wrote her the most heartfelt poem.
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Professional tone: Her calm demeanor hides a strategic mind. Still waters run deep in that one.
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Reflective: Sometimes I think of myself as one of those “still waters run deep” types — quiet, but thoughtful.
Similar Idioms or Phrases
If you like the meaning behind “still waters run deep,” here are a few other idioms that carry a similar idea:
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Don’t judge a book by its cover – Don’t make assumptions based on appearances.
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Silent but deadly – A humorous version meaning someone quiet can be surprisingly powerful (or mischievous).
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Actions speak louder than words – What you do reveals more than what you say.
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Empty vessels make the most noise – People who talk too much often have the least substance.
Each of these idioms teaches us to look beyond the surface — and appreciate quiet strength.
Personal Insight
I’ve always admired people who embody “still waters run deep.” They’re often the ones who listen closely, think deeply, and speak only when they have something meaningful to say. Personally, I’ve learned that silence can be more powerful than words — especially when it’s backed by genuine insight.
Conclusion
So, “still waters run deep” reminds us that calmness isn’t emptiness — it’s often a sign of depth, wisdom, and quiet confidence. The next time you meet someone reserved or soft-spoken, remember: there might be more beneath the surface than you realize.
💬 Do you use “still waters run deep” in your everyday conversations? Share your examples in the comments!