unnervingly


un·nerve

U0098700 (ŭn-nûrv′)tr.v. un·nerved, un·nerv·ing, un·nerves To cause to lose courage or firmness of purpose: "It unnerved him to think that she would be at the supper-table, looking up at him while he spoke with her critical quizzing eyes" (James Joyce).
un·nerv′ing·ly adv.

unnervingly

(ʌnˈnɜːvɪŋlɪ) advin a manner that makes one feel worried or uncomfortable
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