doubting
adjective
[ ˈdaʊtɪŋ ]
• expressing or feeling uncertainty or lack of conviction; sceptical.
• "some doubting voices were raised over the price"
doubt
verb
• feel uncertain about.
• "I doubt my ability to do the job"
• fear; be afraid.
• "I doubt not any ones contradicting this Journal"
Origin:
Middle English: from Old French doute (noun), douter (verb), from Latin dubitare ‘hesitate’, from dubius ‘doubtful’ (see dubious).