The vastness of space feels infinite.
His potential is limitless.
noun which may take the genitive case particle 'no', na-adjective
Adjectival use, often with の or な, describing something that has no bounds or is immeasurably large.
I believe in infinite possibilities.
This game offers endless fun.
It is said that the universe holds infinite possibilities.
According to that theory, the numbers continue infinitely.
無限 describes something infinite or limitless in a broad, often abstract or mathematical sense, while 無尽蔵 emphasizes a real, practical supply that seems endless, like a resource or reserve.
無限 is a noun/na-adjective for 'infinite', often used in mathematical or abstract contexts, while 果てしない is more emotive and descriptive, emphasizing the feeling of endlessness.
infinite regress
infinite sequence