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.

In terms of a practical response, the Palace has already taken unprecedented action in how it stripped the former Prince Andrew of his titles and removed him from his home.

From BBC • Apr. 10, 2026

“It is unprecedented for a prime minister to have a serving ISI chief removed like that,” said Basit.

From The Wall Street Journal • Apr. 10, 2026

Leo was among the shocked, taking the unprecedented step to urge Americans to “communicate with congressmen” that “we don’t want war; we want peace.”

From Salon • Apr. 9, 2026

And as investors look for new ways to take advantage of unprecedented volatility in hydrocarbon prices, exchange-traded funds offering leveraged returns on that volatility are becoming increasingly popular.

From MarketWatch • Apr. 9, 2026

This is Reims Cathedral in France, for which Guillaume de Machaut composed masses that were unprecedented in teir musical complexity.

From "The Story of Music" by Howard Goodall

Vocabulary lists containing unprecedented

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