When you require something urgently or want it badly, there are various ways to express it. A few common synonyms for the phrase "in need of something" include 'craving,' 'yearning,' 'longing,' 'desperately wanting,' 'woefully lacking,' and 'hungry for.' Additionally, you may use phrases such as 'in dire need of,' 'wanting badly,' 'yearning for,' or 'requirement for.' Each of these alternate phrases conveys a slightly different tone or sense of urgency. It's essential to pick the right substitute based on the context, as the words' nuances may differ from one another. Therefore, choose your words wisely to avoid miscommunications and be clear about your needs.