Heuristic
adjective / noun /hjʊˈrɪstɪk/ — A mental shortcut that's usually right.
Definition
A practical mental strategy or rule-of-thumb that helps solve problems quickly; not guaranteed to be perfect, but good enough for most situations.
Beyond the definition
Heuristics are how humans manage a complex world without infinite time. We can't reason from first principles for every decision — so we use mental shortcuts. The best heuristics are the ones you've tested enough to trust.
Origin & history
From Greek heuriskein — to find, to discover. Related to 'eureka!' (I have found it).
Example sentences
Illustrative sentences for learning, not verified community posts or sourced quotations.
His hiring heuristic: would I want this person around in a crisis?
Price anchoring exploits a basic heuristic — the first number you hear shapes all the rest.
Good heuristics take years to develop and save hours every week.
Synonyms
rule of thumb, shortcut, practical method, approximation
Antonyms
algorithm, rigorous analysis, first principles
Related words
- cognitive-bias
- empirical
- methodology
- mental-model
Heuristic vs algorithm
An algorithm is a precise, step-by-step procedure guaranteed to produce a correct result — it is exact, exhaustive, and systematic. A heuristic is a practical shortcut: faster and simpler than an algorithm, good enough for most situations, but not guaranteed. Algorithms eliminate uncertainty; heuristics manage it. In a world where we can't compute everything from first principles, heuristics are what make us functional — at the cost of occasional error.
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Word in the Wild
See how this word appears in life, language and stories.
Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.
Fictional scene
Negotiating at a produce stall
Two adults negotiate at a produce stall with a balance scale, apples, and simple metal coins, making an exchange.
The practical negotiation and use of a scale serve as a rule-of-thumb strategy to reach an agreement quickly, representing a heuristic approach to solving the problem of valuation and trade.
Image credit: Wordspun · AI-generated conceptual illustration