1. Trifling; of no importance
2. Small-minded; focused on small details in a self-serving way.
3. Mean-spirited; quarrelsome.

1. Set so close together as to be invulnerable to penetration
2. Securely or solidly fixed in place; rigid
3. Packed closely together
4. Of such close construction as to be impermeable
5. Closely constrained or constricted or constricting
6. (Economics) Affected by scarcity and expensive to borrow