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overthin

adjective over·thin \ ˌō-vər-ˈthin \

Definition of overthin

: 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

First Known Use of overthin

circa 1639

in the meaning defined above

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2

overthin

verb

Definition of overthin

overthinned; overthinning
intransitive + transitive
: 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

First Known Use of overthin

1819

in the meaning defined above

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