Search Result for "ceaselessness": 
Wordnet 3.0

NOUN (1)

1. the quality of something that continues without end or interruption;
[syn: continuousness, ceaselessness, incessancy, incessantness]



WordNet (r) 3.0 (2006):

ceaselessness
    n 1: the quality of something that continues without end or
         interruption [syn: continuousness, ceaselessness,
         incessancy, incessantness]