flatness

Noun

• inactivity; showing an unusual lack of energy
  • the general appearance of sluggishness alarmed his friends
    

• the property of having little or no contrast; lacking highlights or gloss

• a deficiency in flavor
  • it needed lemon juice to sharpen the flatness of the dried lentils
    

• a want of animation or brilliance
  • the almost self-conscious flatness of Hemingway's style
    

• the property of having two dimensions

Related words

• Synonyms: 
  languor , lethargy , sluggishness , phlegm , lusterlessness , lustrelessness , mat , matt , matte , two-dimensionality , planeness