the quality of being honest and having strong moral principles; moral uprightness.
Integrity was the first word that popped to mind when I thought "what word starts with I?" Integrity is not something we are seeing a lot of in our society it seems to me. I remember always hearing the saying "Integrity is doing the right thing, even when no one is watching." (C.S. Lewis)
Here is a Bible verse from Proverbs about integrity:
Whoever walks in integrity walks securely, but whoever takes crooked paths will be found out." Proverbs 18:9
Do you consider yourself a person of integrity? Would those around you think of you when they think of integrity?