The term 'not happy at all' can be summarized by two crossword solutions: SORE (4 letters) and UPSET (5 letters). SORE is an adjective that means feeling physical or emotional pain, discomfort, or distress. It is often used to describe a feeling of being hurt or injured. UPSET is an adjective that means feeling unhappy, worried, or angry. It is often used to describe a feeling of being disturbed or distressed. Both words are used to describe a feeling of unhappiness or dissatisfaction.