The term "conventional wisdom" refers to a widely accepted belief or idea that is based on common sense and experience, rather than empirical evidence. Full definition
Other scientists just did not believe our results, because they went against conventional wisdom of blood circulation and metabolism in the brain. (kavlifoundation.org)
But while it's smart to keep sipping, especially when it's hot and humid, a lot of conventional wisdom about hydrating is just plain false. (health.com)
The moral: When conventional wisdom says something can't be done, just wait. (energytomorrow.org)