such that comparison is impossible; unsuitable for comparison or lacking features that can be compared; "an incomparable week of rest and pleasure"; "the computer proceeds with its incomparable logic and efficiency"; "this report is incomparable with the
4
unconquerable
not capable of being conquered or vanquished or overcome; "a tribute to his courage...and his unconquerable will"- R.E.Danielson; "faced unconquerable difficulties"
2
irresistible
impossible to resist; overpowering; "irresistible (or resistless) impulses"; "what happens when an irresistible force meets an immovable object?"
2
unbearable
impossible to bear; "unbearable pain"; "unendurable agony"
