Serious sé’ri-as, adj grave; in earnest; disinclined to lightness of mood; not to be taken lightly; showing firmness of intention or commitment; approaching the critical or dangerous; concerned with weighty matters; significant; notable, or in significant quantities, as in serious money (colloq). adv se’riously in as serious manner; extremely, as in seriously rich (colloq).

Groove grõõv, n in a furrow, or long hollow, usu one cut with a tool; the track cut into the surface of a record, along which the needle of the record-player moves; a set routine; an exalted mood, ones highest form (slang); a pleasurable or groovy experience; to experience great pleasure; to be groovy. adj groov’y in top form, or in perfect condition; up to date in style, or generally pleasant or delightful.