tireless

== English == === Pronunciation === === Etymology 1 === From tire (“to become sleepy or weary”) + -less. ==== Adjective ==== tireless (not comparable) Indefatigable, untiring and not yielding to fatigue ===== Synonyms ===== untiring, weariless ===== Derived terms ===== tirelessly tirelessness ===== Translations ===== === Etymology 2 === From tire + -less. ==== Adjective ==== tireless (not comparable) (American spelling) Without a tire (wheel covering); tyreless. === Anagrams === Leisters, leisters, riteless