- lacking or without a horizon.
- without hope; hopeless.
Origin of horizonless
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for horizonless
The sultry night shone with diamonds over the horizonless desert.Psyche
There is no limit; its field is horizonless; its appeal is as universal as is the appeal of Christianity itself.The Man That Corrupted Hadleyburg and Other Stories
Mark Twain (Samuel Clemens)
The horizonless world within himself was a glorious thing to explore.The Sensitive Man
Poul William Anderson
Macaulay, in his Essay, has much to say about the splendor and horizonless magnitude of that equipment.Is Shakespeare Dead?