Lonely
Definition 1 of 3
Pro Tip 1/3
Emotional State
Emphasizes the sadness of being alone, not just the fact of physical solitude. After the party, the house felt lonely and silent.
Pro Tip 2/3
Temporary Feeling
Can describe a temporary emotion, doesn't mean always feeling alone. Even in a crowd, I sometimes feel lonely.
Pro Tip 3/3
Personal Perception
It's subjective, based on personal feelings, not an objective situation. She felt lonely without her phone, despite being at a lively party.