Crummy/ˈkrʌmi/ Definition 1 of 3Pro Tip 1/3Quality Judgement Use 'crummy' to express dissatisfaction with the quality of objects or situations. The hotel we stayed at was pretty crummy. Pro Tip 2/3Informal Tone 'Crummy' is casual and best suited for informal conversations, not formal writing. She got a crummy score on her test. Pro Tip 3/3Emotional Flavor Adding 'crummy' may convey your emotional disappointment, not just objective observation. I feel bad about giving her such a crummy gift.