The officer challenged him to a duel.challengedchal‧lenged /ˈtʃæləndʒd/ adjective 
EXAMPLES FROM THE CORPUS
- Although challenged, this remains the most convincing explanation.
- Established elements of parliamentary democracy in Britain are challenged.
- Her beliefs and principles were accepted by the company and never challenged but Mrs Taylor had failed to recognise this.
- In the fall of 1995, another researcher published a study, that challenged obesity researchers to rethink many of their conclusions.
- In the work in both the Preston and Oxford shows, that perceptual centring is constantly challenged.
- It was in this period too that a club's control over a player was first challenged in the law courts.
- She must therefore establish with the client whether those later accounts contain similar items to those challenged for previous years.
- The adversary politics thesis developed by the reformers has also been variously challenged.
COLLOCATIONS FROM OTHER ENTRIES The officer challenged him to a duel.
The officer challenged him to a duel.PHRASES FROM THE ENTRY
- And everywhere, blind and physically challenged skiers are testing themselves on the snow.
- So there are these three visually challenged yuppies at the zoo, checking out their first elephant.
- The organisation as a whole became sensitised to the many debates which faced women artists who were physically challenged.
WORD FAMILYadjectivechallengingchallenged ≠ unchallengedunchallengeablenounchallengechallengerverbchallengeadverbchallengingly
visually/physically/mentally etc challenged American English used as a polite expression for describing someone who has difficulty doing things because they are blind etc