The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.
hardworking, industrious, tireless, untiring
(adjective) characterized by hard work and perseverance
indefatigable, tireless, unflagging, unwearying
(adjective) showing sustained enthusiastic action with unflagging vitality; “an indefatigable advocate of equal rights”; “a tireless worker”; “unflagging pursuit of excellence”
Source: WordNet® 3.1
(intransitive) tire + -less
tireless (not comparable)
Indefatigable, untiring and not yielding to fatigue
• untiring
tireless (not comparable)
Without a tire (wheel covering); tyreless.
• Leisters, leisters, riteless
Source: Wiktionary
Tire"less, a.
Definition: Untiring.
Source: Webster’s Unabridged Dictionary 1913 Edition
1 April 2025
(adverb) at the present or from now on; usually used with a negative; “Alice doesn’t live here anymore”; “the children promised not to quarrel any more”
The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.