The meaning of BAD is failing to reach an acceptable standard : poor. How to use bad in a sentence.

BAD definition: not good in any manner or degree. See examples of bad used in a sentence.

BAD meaning: 1. unpleasant and causing difficulties: 2. of low quality, or not acceptable: 3. not successful…. Learn more.

Something that is bad is unpleasant, harmful, or undesirable. The bad weather conditions prevented the plane from landing. We have been going through a bad time. I've had a bad day at work.

Some people prefer to maintain a distinction between feel badly and feel bad, restricting the former to emotional distress and using the latter to cover physical ailments; however, this distinction is not …

Hurtful; noxious; having an injurious or unfavorable tendency or effect: with for: as, bad air or bad food; late hours are bad for the health; this step would be bad for your reputation or prospects.

Something that is below standard or expectations, as of ethics or decency. Weighing the good against the bad.