However, you can use other words to express different degrees of loneliness:
* Comparative: More lonely, lonelier
* Superlative: Most lonely, loneliest
For example:
* "I felt lonesome after my friends moved away." (This uses the superlative form, but it's implied that the speaker was simply feeling lonely, not the most lonely they'd ever felt.)
* "I felt more lonely after my friends moved away than I did before." (This uses the comparative form.)
* "I felt the most lonely I'd ever felt after my friends moved away." (This uses the superlative form explicitly.)