lonelier

/L OW1 N L IY0 ER0/
adjective
  1. 1

    Unhappy because of feeling isolated from contact with other people.

  2. 2

    (of a place or time) Unfrequented by people; desolate.

  3. 3

    (of a person) Without companions; solitary.

Source: https://en.wiktionary.org/wiki/lonelier, https://en.wiktionary.org/wiki/lonely