1. excessively thin; thinner than is desirable or healthy

1. to make something thinner than necessary or desired
Usage: transitive verb

Examples

• The overthin walls of the old house offered little insulation.
• She worried that her son looked overthin and encouraged him to eat more.
• Don't overthin the paint or it won't cover properly.
• The overthin crust crumbled when he tried to slice the pie.
• He decided to overthin the sauce by adding more broth.
• The overthin fabric tore easily during washing.