challenge

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.

But analysts point to shifts elsewhere as evidence that democracy on the continent is being challenged.

From BBC

Despite this milestone, developing safer, non-toxic catalysts that can achieve similar performance at lower temperatures has remained an unresolved challenge.

From Science Daily

Roosevelt’s challenge to Wall Street, he writes, “was largely a bully pulpit affair, with rhetoric exceeding action.”

From The Wall Street Journal

Apart from the "flawed rule" that required climbers to bring back less trash than they produce, authorities in the Everest region said lack of monitoring has been the main challenge.

From BBC

However, the proliferation of slop presents a lasting challenge as AI capabilities blur the line between human and AI creations.

From MarketWatch