Definitions

unprecedented

[uhn-pres-i-den-tid] / ʌnˈprɛs ɪˌdɛn tɪd /

ADJECTIVE

exceptional, original

Synonyms

STRONGEST

bizarre extraordinary fantastic miraculous new remarkable singular uncommon unheard-of unique unparalleled unrivaled unusual

WEAK

aberrant abnormal anomalous eccentric exotic freakish idiosyncratic marvelous modern newfangled novel odd out-of-the-way outlandish outre outré preternatural prodigious signal sui generis unexampled

Antonyms

STRONGEST

bad common commonplace customary familiar normal ordinary poor regular standard usual

WEAK

known unexceptional unremarkable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Potentially adding to Warsh's challenges will be the fact that Powell has chosen to remain on the board as a member -- an unusual but not unprecedented move for an outgoing chair.

From Barron's • May 22, 2026

Musk will have a nearly unprecedented level of control at a public company of its size, which is expected to reach a valuation of at least $1.5 trillion.

From The Wall Street Journal • May 22, 2026

The researchers demonstrated an unprecedented spatial resolution of λ/1000 and successfully imaged deep-subwavelength patterns, including the letters "PKU" and "SFM."

From Science Daily • May 21, 2026

The winter brought unprecedented warmth across the western United States.

From Los Angeles Times • May 19, 2026

His impossible dream had, against all probability, crossed deserts and mountains to come to Zosma and extend an unprecedented invitation.

From "Strange the Dreamer" by Laini Taylor

Vocabulary lists containing unprecedented

The SAT: Words to Capture Tone, List 5

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The New SAT: Words to Capture Tone

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Fast Food Nation

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