While both "stupid" and "foolish" describe a lack of intelligence or good judgment, there's a subtle difference in their connotations. "Stupid" generally implies a lack of basic intelligence or common sense, often suggesting a lower cognitive ability. It's a harsher word and can be quite offensive. "Foolish," on the other hand, suggests a lack of good judgment or wisdom, but usually implies that the person has the potential for better. It suggests a mistake made due to a lack of understanding or thoughtfulness, rather than a fundamental lack of intelligence. Think of it as a lack of wisdom rather than intellect.

Here are some example sentences to illustrate the difference:

• Stupid:

  • "He made a stupid mistake by leaving his phone unlocked." (He made a silly, thoughtless mistake.)
  • "That's a stupid idea!" (That's a really bad idea showing lack of common sense.)

• Foolish:

  • "It was foolish of her to trust him." (Her decision to trust him lacked wisdom and was unwise.)
  • "It would be foolish to spend all your money at once." (Spending all your money at once is a financially unwise decision.)

Notice how "stupid" often describes actions stemming from a lack of basic intelligence, while "foolish" points to poor judgment and a lack of wisdom. Both words are negative, but "stupid" carries a stronger, more offensive charge. Choosing the right word depends on the context and the nuance you want to convey.

Happy learning!