rectitude

N-UNCOUNT

Rectitude is a quality or attitude that is shown by people who behave honestly and morally according to accepted standards.[ FORMAL ]

• people of the utmost moral rectitude.
  

... Cobuild

1. Moral uprightness; righteousness.

2. The quality or condition of being correct in judgment.

3. The quality of being straight.

[Middle English, from Old French, from Late Latin rctitd, from Latin rctus, straight; see reg- in Indo-European roots.]

... Am-Heritage