the.com/unhappy
The mood that knows exactly what's wrong but not how to fix it.
means Feeling dissatisfied, sad, or discontented, usually with a specific reason close at hand.
from From the Norse-rooted hap, meaning luck or chance — so unhappy literally means unlucky, before it learned to mope about feelings.
Lucky cousinShares its root with happen and mishap.
Tone shiftOnce meant unfortunate, now means emotionally glum.
Stronger than sadImplies a fixable grievance, not just sorrow.