[1] : The Collaborative International Dictionary of English v.0.48

question \ques"tion\, v. i. imp.  p. p. questioned; p. pr. 
   vb. n. questioning. cf. f. questionner. see question,
   n.
   1. to ask questions; to inquire.
      1913 webster

            he that questioneth much shall learn much. --bacon.
      1913 webster

   2. to argue; to converse; to dispute. obs.
      1913 webster

            i pray you, think you question with the jew. --shak.
      1913 webster
see also:
questioned questioning question 

[2] : WordNet (r) 2.0

questioning
     adj 1: perplexed as if being expected to know something that you
            do not know; "he had a quizzical expression" syn: quizzical
     2: marked by or given to doubt; "a skeptical attitude"; "a
        skeptical listener" syn: doubting, skeptical, sceptical
     3: showing curiosity; "if someone saw a man climbing a light
        post they might get inquisitive"; "raised a speculative
        eyebrow" syn: inquisitive, speculative, wonderinga
     n : a request for information syn: inquiring
see also:
quizzical doubting skeptical sceptical inquisitive speculative 
wonderinga inquiring 

[3] : Moby Thesaurus II by Grady Ward, 1.0

69 moby thesaurus words for "questioning":
   pyrrhonic, socratic method, agnostic, answering, asking,
   bringing into question, catechetical method, catechistic,
   catechization, catechizing, challenge, communicating,
   communicational, communional, conversational, curious,
   disbelieving, dispute, distrustful, doubtful, doubting, dubious,
   examination, from missouri, in doubt, inquiring, inquisitional,
   inquisitorial, interacting, interactional, interactive,
   intercommunicational, intercommunicative, intercommunional,
   interpellation, interresponsive, interrogation, interrogational,
   interrogative, interrogatory, investigative, leery, linguistic,
   mistrustful, mistrusting, oral, probing, pumping, query, querying,
   question, quiz, quizzical, quizzing, responsive, scrupulous,
   seeking, shy, skeptical, speech, suspecting, suspicious,
   telepathic, transmissional, unbelieving, uncertain, untrusting,
   verbal, wary

Questioning >> Q Words
Questioning, definition of term: Questioning
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