UnderstatementAges 15–20Not the best idea
A polite way of saying something was a bad idea.
Cycling to school in the heavy rain was not the best idea.
Remember: Instead of 'terrible idea', the speaker says less. This softening is common in British English, especially at work.
Short lessonSaying more or lessSometimes we stretch the truth, shrink it, or give things human feelings to make a point.