Shallow
Definition 1 of 4
Pro Tip 1/3
Relative Depth
Use 'shallow' to compare depth, especially with things usually deeper. The kids' pool is shallower than the adult one.
Pro Tip 2/3
Physical Safety
'Shallow' often indicates a safer area in bodies of water for non-swimmers. Stay in the shallow part of the lake where you can stand.
Pro Tip 3/3
Negative Connotation
In some contexts, 'shallow' can suggest a negative lack of substance or complexity. People avoid the shallow end of the conversation.