Sad

1 a : affected with or expressive of grief or unhappiness : DOWNCAST b (1) : causing or associated with grief or unhappiness : DEPRESSING (2) : REGRETTABLE, DEPLORABLE c : of little worth2 : of a dull somber color

I feel sad tonight but don't know why...want to cry but can't or nothing to cry about...I feel alone when I really am not...sadder... saddest... sadly... sadness...SAD...of little worth.