boundless

/ˈbaʊndləs/adjective

Having no limits or end.

Example sentence

“The puppy greeted everyone with boundless energy.”

Reserved for admirable abstractions: boundless energy, boundless enthusiasm, boundless optimism. Rarely used of physical things.

Related words

boutiqueA small store, often one selling stylish clothing, jewelry, or similar goods.boulderA very big rock that sits apart from the ground around it.bowlingA game in which players roll a heavy ball along a lane, aiming to knock down a set of ten pins arranged in a triangle.borrowTo take something from another person for a while, planning to give it back.boxingA combat sport in which two fighters wearing padded gloves hit each other's head and upper body, winning by points or by knocking the opponent out.boredomThe feeling you have when nothing interests you and time seems to drag.