MEASURELESS
illimitable, limitless, measureless, unmeasured
(adjective) without limits in extent or size or quantity; “limitless vastness of our solar system”; “The long unmeasured pulse of time moves everything. There is nothing hidden that it cannot bring to light, nothing once known that may not become unknown.”--Sophocles
Source: WordNet® 3.1
Etymology
Adjective
measureless (not comparable)
Not measured because it is so large that it is difficult or impossible to do so.
Synonyms: boundless, limitless, vast
Source: Wiktionary
Meas"ure*less, a.
Definition: Without measure; unlimited; immeasurable.
– Meas"ure*less*ness, n.
Syn.
– Boundless; limitless; endless; unbounded; unlimited; vast;
immense; infinite; immeasurable. Where Alf, the sacred river ran,
Through canyons measureless to man, Down to a hidden sea. Coleridge
Source: Webster’s Unabridged Dictionary 1913 Edition