Synonyms: inexhaustible
Definition: incapable of being entirely consumed or used up
Usage: an inexhaustible supply of coal
Similar words: renewable
Definition: capable of being renewed; replaceable
Usage: renewable energy such as solar energy is theoretically inexhaustible
Similar words: unfailing
Definition: always able to supply more
Usage: an unfailing source of good stories; a subject of unfailing interest
Synonyms: unlimited, inexhaustible
Definition: that cannot be entirely consumed or used up
Usage: an inexhaustible supply of coal
Similar words: infinite
Definition: having no limits or boundaries in time or space or extent or magnitude
Usage: the infinite ingenuity of man; infinite wealth