straightness

Noun

• a sexual attraction to (or sexual relations with) persons of the opposite sex

• having honest intentions
  • he acted in good faith
    
  • doubt was expressed as to the good faith of the immigrants
    

• trueness of course toward a goal
  • rivaling a hawk in directness of aim
    

• freedom from crooks or curves or bends or angles

• (of hair) lack of a tendency to curl

Related words

• Synonyms: 
  heterosexuality , heterosexualism , good faith , directness
• Antonyms: 
  indirectness , crookedness , curliness , waviness