Solutions Based on observation rather than pure logic has 6 entries with similar clues
- 5-letter words
- hunchA belief that something is true based on a feeling rather than evidence
- 7-letter words
- empiricDerived from experiment and observation rather than theory
- 8-letter words
- a-prioriReasoning from first principles (Latin)/reasoning based on theory rather than observation
- 13-letter words
- rule-of-thumbA fairly accurate guide based on practice rather than theory
- discretionaryBased on personal decision rather than on regulations
- 15-letter words
- natural-historyThe scientific study of animals or plants with observation rather than experiment