Merriam-Webster Collegiate Dictionary - upright

 I. adjective  Date: before 12th century  1.  a. perpendicular, vertical  b. erect in carriage or posture  c. having the main axis or a main part perpendicular ~ freezer  2. marked by strong moral rectitude an ~ citizen  • ~ly adverb  • ~ness noun Synonyms:  ~, honest, just, conscientious, scrupulous, honorable mean having or showing a strict regard for what is morally right. ~ implies a strict adherence to moral principles a stern and ~ minister. honest stresses adherence to such virtues as truthfulness, candor, fairness known for being honest in business dealings. just stresses conscious choice and regular practice of what is right or equitable workers given just compensation. conscientious and scrupulous imply an active moral sense governing all one's actions and painstaking efforts to follow one's conscience conscientious in the completion of her assignments scrupulous in carrying out the terms of the will. honorable suggests a firm holding to codes of right behavior and the guidance of a high sense of honor and duty a difficult but honorable decision.  II. adverb  Date: 12th century vertically upward ; in an ~ position  III. noun  Date: 1683  1. the state of being ~ ; perpendicular a pillar out of ~  2. something that stands ~; especially a football goalpost — usually used in plural  3. ~ piano