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.

Sheinbaum emphasized that it was unprecedented for the U.S. to initiate charges directly against a sitting governor.

From Los Angeles Times • Apr. 30, 2026

The team also examined cytotoxic granules, which are responsible for killing target cells, with unprecedented clarity.

From Science Daily • Apr. 30, 2026

Now, all eyes will be on Powell on Wednesday to see if he will choose to continue on the board past his time as chair, a move that would be unusual but not unprecedented.

From Barron's • Apr. 29, 2026

Hirosuke Imazu, the mayor of Asahikawa city, told a press conference on Tuesday that authorities were now grappling with what he described as an "unprecedented crisis".

From BBC • Apr. 29, 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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Fast Food Nation

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