heady /ˈhɛdi/adjective 6forms 2phrases 1 adjective6 •Intoxicating or stupefying.The cocktail was a heady mixture of spirits. •Exhilarating or exciting; producing a feeling of high energy or confidenceThe rock concert was a heady mixture of their greatest hits. •Tending to upset the mind or senses.We looked out from a heady outcrop of rock. •rapid, substantial, or breakneck in growth.The heady pace of manufacturing stands in contrast to some of the recent news on how consumers are faring.This follows some heady gains in hourly wages for retail workers. •Intellectual.Kierkegaard is rather heady reading for a high school student. •Rash or impetuous.He made such heady promises that when the time came, he was never able to fulfill them. formsheadier · headiest Phrases with heady heady daysA period of time characterized by excitement, rapid success, high energy or optimism.