A feeling that is indescribable to those who have not felt it, and needs no description to those who have. That desolate feeling of being left out, left behind, and being all alone forever. This not only applies to girlfriends(though they bring the strongest effect) but also major life changes - graduation, deaths, etc... It is that hole that appears in your heart, which cannot be filled by your efforts alone. In such a case, crying occurs and is often encouraged as it heals the soul.
I want to be with her forever, but I know the day is coming where we'll never see each other again
by Yogo540 May 23, 2005
1. An adjective describing one who finds him or her self looking up words such as lonely on urbandictionary.com because he or she misses his or her loved one, or has not yet found one to be named as such.


2. 12:42 a.m.: Sitting in front of a computer in the dead of night, wondering where the girl that you've fallen madly in love with is and most of all, why she's not here, next to you. Usually this condition can be cured by random yet enthusiastic reiteration of the phrase: "I love you, Diana!"
by Void June 21, 2004
A powerful feeling of emptiness and isolation; feeling disconnected and alienated from other people.
The first recorded use of the word lonely was by William Shakespeare.

"Loneliness is the worst pain in this world. It constantly eats away the person's heart, and can cause the person to hate, to feel enraged--the same rage and hate that can cause one person to kill another. It is like a wound of the heart; the type of wounds that cannot go away with a kiss or a hug. The only thing that can make this great pain go away is love and compassion, another human heart to pull them out of this hell."- Princess Diana
by OneBadAsp November 4, 2006
One of the saddest feelings possible. It can be from not having a partner, not having friends, or not having either. A lonely person can be very sad, and won't have anyone to comfort them. It can be hard to break out of loneliness. Some people are lonely for years at a time, or maybe just one night.
He just moved away from home and has no friends, he must feel so lonely. Let's go talk to him!
by charlie23_ December 31, 2008
Literally everyone on this website. I mean seriously. Who would look at a website full of sex references. You would only do that if you were lonely.
by SpiderManGeek March 8, 2020
Unloved. Unhappy. In pain, not just mental but physical too.
by Someonehelpme September 2, 2018
Having a tiny little mental hole inside of you that keeps you from being happy. You can try to fill that empty spot with rainbows and happy thoughts... but happiness will almost always keep leaking out of that hole. Worst of all, the longer you have that hole, the bigger it seems to get. Stupid hole...
You feel lonely.. I feel lonely.

He, she, we... feel lonely. T_T
by Xx-kutsuu-xX January 19, 2010