challenges

NOUN

dispute, question

Synonyms

STRONGEST

objection protest test threat

STRONG

claiming confrontation dare defiance demanding demur interrogation provocation remonstrance trial ultimatum

WEAK

summons to contest

Antonyms

STRONGEST

acceptance

STRONG

peace

WEAK

agree answer decide win

VERB

dispute, question

Synonyms

STRONGEST

ask for assert call for claim confront defy demand denounce impose require test try

STRONG

accost arouse beard brave cross dare exact impeach impugn inquire investigate provoke query reclaim stimulate summon tax vindicate

WEAK

call out face down face off face the music fly in the face of hang in insist upon invite competition make a point of make a stand object to search out stand up to stick it out throw down the gauntlet

Antonyms

STRONGEST

deny

STRONG

answer calm dodge ignore

WEAK

agreement decision victory

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.

The programme promotes research linked to seven ‘grand challenges’ in Earth-system science and climate-impact research, including climate sensitivity to rising greenhouse-gas concentrations, carbon feedbacks and sea-level rise.

From Nature • Mar. 14, 2017

"Mr Deakin added that he disagreed with elements of the CAA's evaluation of Nats's contingency plans, but pointed out that 'one of the challenges' was their ageing systems," the paper reports.

From BBC • Dec. 13, 2014