Perceptiveness.
The condition of understanding.
The act of distinguishing between things.
The ability to distinguish between things.
Aesthetic discrimination; taste, appreciation.
The ability to make wise judgements; sagacity.
Discretion in judging objectively.
The ability to perceive differences that exist.
The ability to distinguish; judgement.
Focused alertness, quick-thinking resourcefulness, stability of thought and feeling, or good sense, especially in spite of circumstances which are distracting, stressful, or otherwise challenging.