Good cheers can be defined as expressions of joy, enthusiasm, or encouragement. However, sometimes we need to express the opposite sentiment. Antonyms for good cheers could be words or phrases like disappointment, discouragement, frustration, or sadness. For instance, instead of saying "good job," we can say "unfortunate," "better luck next time," or "that didn't go as planned." Other alternatives could be "bad news," "displeased," "dismay," or "lackluster." The use of antonyms for good cheers may be appropriate when offering constructive criticism or when in situations where positive reinforcement is not necessary. In those cases, the opposite approach can provide valuable feedback and help improve outcomes.