Word
tireless
Phoneticstire·less
US/ˈtaɪɝɫəs/
UK/tˈaɪələs/
Definition
adj. having a lot of energy and never seeming to get bored or stop working. You use this to describe someone who works very hard for a long time.
adj. characterised by having or showing great effort and energy without becoming exhausted. Often used to describe people dedicated to a specific cause or task.
Examples
“She is a tireless worker who stays late every night.”
“The charity owes its success to the tireless efforts of its volunteers over the last decade.”
“Despite his advancing age, the senator remained a tireless advocate for environmental reform, attending every committee meeting and drafting dozens of new proposals.”
Examples
simple
“She is a tireless worker who stays late every night.”
contextual
“The charity owes its success to the tireless efforts of its volunteers over the last decade.”
complex
“Despite his advancing age, the senator remained a tireless advocate for environmental reform, attending every committee meeting and drafting dozens of new proposals.”
Usage
Typically used attributively before a noun like 'effort', 'worker', or 'advocate'.
Etymology
From tire (“to become sleepy or weary”) + -less
From tire + -less.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Scan code
englishreference.com/q/tireless