straightness

noun

1.
(of hair) lack of a tendency to curl
Antonym:
curliness
Derived from:
straight
2.
freedom from crooks or curves or bends or angles
Antonym:
crookedness
Derived from:
straight
3.
trueness of course toward a goal
Derived from:
straight
4.
having honest intentions
Derived from:
straight
5.
a sexual attraction to (or sexual relations with) persons of the opposite sex
Derived from:
straight