Inconsolable means too heartbroken for any comfort to reach. Nothing anybody says or does will help.
It describes grief above all, and an inconsolable child or an inconsolable widow is beyond the reach of the usual kindnesses, which is what makes the word so bleak. It is a temporary state by definition, since nobody is inconsolable for ever, though it does not feel that way at the time. Disconsolate is milder and describes disappointment rather than grief.
1adjectiveinconsolableUnable to be comforted.
“The children were inconsolable for weeks.”
Latin
inconsolabilis
Middle French
inconsolable
English, today
inconsolable
Middle French inconsolable, from Latin inconsolabilis; by surface analysis, in- + consolable, or, by surface analysis, in- + console + -able.
Etymology from Wiktionary, CC BY-SA