The phrase "under quick" can mean several things, such as "in a hurry" or "urgent." Synonyms for this phrase could include "fast-paced," "expeditious," "swift," or "hasty." Other synonyms might include "pressing," "critical," or "crucial." These words convey a sense of urgency or importance, indicating that action needs to be taken quickly. Whether used in a professional context, such as in a workplace setting, or in everyday conversation, having a strong command of synonyms can help to make communication more effective and impactful. No matter the situation, having a pool of synonyms for "under quick" ensures that the appropriate level of urgency is conveyed.