Problematically and Challenge

adverb

• In such a way as to pose a problem. .

noun

• A demanding or stimulating situation.
  • usage: "they reacted irrationally to the challenge of Russian power"
• A call to engage in a contest or fight.
• Questioning a statement and demanding an explanation.
  • usage: "his challenge of the assumption that Japan is still our enemy"
• A formal objection to the selection of a particular person as a juror.
• A demand by a sentry for a password or identification.

verb

• Take exception to.
  • usage: "She challenged his claims"
  • synonyms: dispute, gainsay
• Issue a challenge to.
  • usage: "Fischer challenged Spassky to a match"
• Ask for identification.
  • usage: "The illegal immigrant was challenged by the border guard"
• Raise a formal objection in a court of law.
  • synonyms: take exception

• (n.) The opening and crying of hounds at first finding the scent of their game.
• (v.i.) To assert a right; to claim a place.
• (n.) The act of a sentry in halting any one who appears at his post, and demanding the countersign.
• (n.) An exception to a person as not legally qualified to vote. The challenge must be made when the ballot is offered.
• (n.) To claim as due; to demand as a right.
• (n.) To object to the reception of the vote of, as on the ground that the person in not qualified as a voter.
• (n.) To question or demand the countersign from (one who attempts to pass the lines); as, the sentinel challenged us, with "Who comes there?".
• (n.) To object to or take exception to, as to a juror or member of a court.
• (n.) To censure; to blame.
• (n.) An invitation to engage in a contest or controversy of any kind; a defiance; specifically, a summons to fight a duel; also, the letter or message conveying the summons.
• (n.) To call to a contest of any kind; to call to answer; to defy.
• (n.) A claim or demand.
• (n.) To take exception to; question; as, to challenge the accuracy of a statement or of a quotation.
• (n.) An exception to a juror or to a member of a court martial, coupled with a demand that he should be held incompetent to act; the claim of a party that a certain person or persons shall not sit in trial upon him or his cause.
• (n.) To call, invite or summon to answer for an offense by personal combat.

(DoD, NATO) Any process carried out by one unit or person with the object of ascertaining the friendly or hostile character or identity of another. See also countersign; password.