Main definitions of overfit in US English:

: overfit1overfit2

overfit1

noun

Statistics
  • An analysis which corresponds too closely or exactly to a particular set of data.

Main definitions of overfit in US English:

: overfit1overfit2

overfit2

adjective

Physical Geography
  • Designating or relating to a stream which, on the basis of its current flow, would have eroded a larger valley than it occupies.

verb

  • with object Statistics. To produce or represent an analysis which corresponds too closely or exactly to (a particular set of data); to make (a model) fit a particular set of data too precisely. Also without object: to provide too close a fit.

Origin

1970s; earliest use found in Statistician. From overfit<br>early 20th century. From over- + fit, after misfit<br>mid 18th century (in an earlier sense). From over- + fit.

Pronunciation

overfit

/ˈəʊvəfɪt/