lonely vs dejected

lonely and dejected both are adjectives.

Word	Noun	Adjective	Verb	Adverb
lonely	No	Yes	No	No
dejected	No	Yes	No	No

lonely (adjective)	dejected (adjective)
marked by dejection from being alone	affected or marked by low spirits
lacking companions or companionship
devoid of creatures
characterized by or preferring solitude