Definition of "invisibly" []

• In a way that can not be seen; in an invisible manner. (adverb)

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• "If the temperature of the air be still higher its solvent power will be still further increased, and more aqueous vapor can be taken up invisibly from a watery or humid surface."
• "New research by University of Minnesota psychologists shows how social support benefits are maximized when provided "invisibly" -- that is, without the support recipient being aware that they are receiving it."
• "She began hotly upbraiding him, and maintaining that the prince had only praised Natasha to deceive him by a show of kindness, all in order to destroy their attachment, with the idea of invisibly and imperceptibly turning Alyosha against her."