Unending (adjective)

1. Continuing without stopping or without end.
2. Having no end or conclusion.

Origin:

Late 16th century: from un- (expressing negation) + ending.

Examples:

1. The unending journey was long and arduous.
2. The unending stream of questions was overwhelming.
3. The unending supply of food was a blessing in the famine.
4. The unending cycle of life and death was a mystery.
5. The unending love was unconditional and unwavering.