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U_________
Definitions
Unflagging means tireless or not weakening.
Word origin
From un- + flagging.
Used in a sentence
“His unflagging efforts have not gone unnoticed.”
“He went on kissing her with unflagging industry, while she remained limply in his arms, in a species of satisfied trance.”
“He writes of locomotive design, maintenance, passenger timetables, the structure of freight services, supervision and organisation, with unflagging enthusiasm, which comes across to us in a most readable book.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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