food for thought
Meaning
Something that makes you think carefully; an idea or information worth considering.
Origin
Recorded from the 1800s; uses a long-standing metaphor comparing ideas and reflection to nourishment (food) for the mind.
Notes
Used for ideas or information that prompt reflection. Neutral to positive; common in conversation and writing, slightly thoughtful/formal in tone.
Examples
-
The professor’s lecture on climate policy gave me a lot of food for thought.
-
Her comment about how I manage my time was real food for thought.
-
The documentary offered plenty of food for thought about the ethics of AI.
-
Before you quit your job, here’s some food for thought: what will you do next?
-
Reading that book was food for thought, and I’m still reflecting on it days later.
Grammar & Usage Notes
Usually used as a noun phrase: “That’s food for thought.” Also “give/provide food for thought.” Article is often omitted; rarely plural (“foods for thought” is uncommon).
Synonyms
- something to think about
- cause for reflection
- matter for consideration
- brain food
Antonyms
- nothing to think about
- no-brainer