As a verb showest
is archaic second-person singular of show lang=en.
As an adjective showiest is
superlative of showy.
showiest
English
Adjective
(head)
(showy)
showy
English
Adjective
(er)
(sometimes, derogatory) calling attention; flashy; standing out to the eye
Synonyms
*
Hyponyms
* slutty
Derived terms
* showiness