lonesome

Isolated is a related term of lonesome.

As adjectives the difference between isolated and lonesome

is that isolated is placed or standing apart or alone; in isolation while lonesome is unhappy due to being alone; lonely.

As a verb isolated

is (isolate).

As a noun lonesome is

(informal) oneself alone.

Lonesome is a related term of separated.

As adjectives the difference between lonesome and separated

is that lonesome is unhappy due to being alone; lonely while separated is detached; not connected or joined; two or more things stand apart.

As a noun lonesome

is (informal) oneself alone.

As a verb separated is

(separate).

Deserted is a related term of lonesome.

As adjectives the difference between deserted and lonesome

is that deserted is abandoned while lonesome is unhappy due to being alone; lonely.

As a verb deserted

is (desert).

As a noun lonesome is

(informal) oneself alone.

As adjectives the difference between lonesomer and lonesome

is that lonesomer is (lonesome) while lonesome is unhappy due to being alone; lonely.

As a noun lonesome is

(informal) oneself alone.

As adjectives the difference between lovesome and lonesome

is that lovesome is worthy of love; having qualities that inspire love; lovable while lonesome is unhappy due to being alone; lonely.

As a noun lonesome is

(informal) oneself alone.

As adjectives the difference between lonesome and longsome

is that lonesome is unhappy due to being alone; lonely while longsome is long; lengthy; long-lasting; protracted.

As a noun lonesome

is (informal) oneself alone.

As adjectives the difference between lonesome and lone

is that lonesome is unhappy due to being alone; lonely while lone is solitary; having no companion.

As a noun lonesome

is oneself alone.