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Definition of ultrathin
ultrathin
/ˌʌl.tɹəˈθɪn/
ul · tra · thin
ultrathin Lexical Profile
CEFR
B2
Grade
7
Tier
2
Usage
Top 10k
Syllables
3
ultrathin Game Scores & Validity
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WWF
Wordle Guess
• adjective
1
Having a remarkably small thickness or depth; extremely thin.
Example
"The engineer selected an ultrathin silicon wafer to reduce the overall weight of the mobile device."
Synonyms
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Cite this Entry
Wordmom. (2026). Definition of Ultrathin. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/ultrathin