An idiom and proverb of Latin origin that emphasizes that a low-
key exterior hides a passionate nature or surprising qualities. Concurrently, it serves as a warning that
calm or quiet people are dangerous.
In short, it means, "
don't judge a book by its cover" and "there's more than meets the eye."
Example1: "My mother doesn’t talk much when we’re all gathered together, and looks very
calm but, you know, still waters run deep. Before we arrive she spends the whole
day rushing about, shopping, cooking, making sure everyone is coming, and without her energy nothing would happen in this family.”
Example 2: "Amanda isn't much of a talker, but who would've thought she had such an impressive
talent in singing?
Wow, still waters run deep."
Example 3: "A group of
kids would talk shit about people in their native language. They mainly made fun of Jonathan, the
skinny quiet kid. One group member decided they were gonna put their hands on him. Turns out Jonathan has been practicing Kickboxing since he was a
child. Not only that, after he laid the group member out, he dresses the entire group down IN THEIR NATIVE LANGUAGE! Everyone found out he spoke three different languages. Still waters run deep, who would've thought?!"
