1) Accommodatingly 2) Alertly 3) As if with kid gloves 4) Attentively 5) Cautiously 6) Conscientiously 7) Cooperatively 8) Discreetly 9) Exclusively Saxon word 10) Exclusively Anglo word 11) Favourably 12) Fussily 13) Good-naturedly 14) Guardedly 15) In moderation 16) Meticulously 17) Obligingly 18) Painstakingly 1) Attentively 2) Cautiously 3) Charily 4) Closely 5) Craftily 6) Frugally 7) Gingerly 8) Industriously 9) Neatly 10) Prudently 11) Securely 12) Systematically 13) Tactfully 14) Thoroughly 15) Tidily 16) Warily 
• (adv.) In a careful manner.
Care'ful·ly adverb In a careful manner. 
[adv] - taking care or paying attention
adverb taking care or paying attention; `they watched carefully`