What is the comparative and superlative to word lonesome?

There isn't a simple comparative or superlative form for the word "lonesome" in the same way you'd have for adjectives like "big" (bigger, biggest).

Lonesome is already a very strong word expressing a high degree of solitude and sadness. To express a greater degree of these feelings, you would use intensifiers or other descriptive words, like:

* More lonesome

* Extremely lonesome

* Utterly lonesome

* Desperately lonesome

* Most lonesome (this is often used in poetic or figurative language)

Remember, the most effective way to convey a heightened sense of loneliness is through the use of strong imagery and vivid descriptions.