The term 'less happy' can be described by three crossword solutions: ANGRIER (7 letters), dour (6 letters), and sadder (6 letters). ANGRIER is an emotion that is more intense than anger, and is often associated with a feeling of frustration or resentment. Dour is an adjective that describes someone who is gloomy, stern, and unfriendly. Sadder is an emotion that is less intense than sadness, but still carries a feeling of unhappiness. All three words describe a person who is not as happy as they could be.