uprightness

Concise Oxford English Dictionary © 2008 Oxford University Press:
upright/ˈʌprʌɪt/

▶adjective

• 1 vertical; erect.

  ■ (of a piano) having vertical strings.

• 2 greater in height than breadth.

• 3 strictly honourable or honest.

▶adverb in or into an upright position. ▶noun

• 1 a vertical post, structure, or line.

• 2 an upright piano.

– derivatives
uprightly adverb,
uprightness noun.

– origin OE upriht, of Gmc origin; see up, right.