Packs like sardines is an expression that is often used to describe a situation where people are crammed together in a small space. The antonym for this expression is spacious or roomy. When a space is described as spacious, it means that it is wide and open, with a lot of room for people to move around freely. A spacious environment is ideal for relaxation, especially after a long day at work or intense activity. It is important to have an open, airy space to avoid feeling boxed in or claustrophobic. A spacious setting can also result in more productivity, better mood, and less stress.