simple past tense and past participle of underhand

Devious people, collectively.

(transitive, intransitive) To charge less than the correct amount. / (transitive, firearms) To put too small a charge into.

A monetary charge that is less than the correct amount.

(US) The opposite of an upperclassman; a freshman or sophomore.

Employed in a job that offers fewer work hours than desired.

A layer of short hairs underneath the longer ones of an animal's fur / A coat of paint or other material applied onto a surface before that of a topcoat; a coloured primer

(transitive) To apply an undercoat to.

(photography) To take a photograph using too small an exposure / To provide with insufficient publicity

(photography) The condition when a photograph is darker than it should be because the film was not exposed to sufficient light either because the camera aperture was too small or the duration of light was too short.