overthin

1 of 2

adjective

over·​thin ˌō-vər-ˈthin 

: excessively thin

overthin paint

She was … overthin, as if a hypercharged metabolism was burning off calories faster than she could stuff them into her mouth.

—Bonnie MacDougal

overthin

2 of 2

verb

overthinned; overthinning

transitive + intransitive

: to make (something) too thin : to thin (something) too much

overthinning a tree with too much pruning

It is thinned with water just as the paints are, but care should be taken not to overthin and lose the quality of the gesso.

—William F. Powell

Word History

First Known Use

Adjective

circa 1639, in the meaning defined above

Verb

1819, in the meaning defined above