Invisibly

The Century Dictionary and Cyclopedia
  • In a manner to escape the sight; so as not to be seen.
  • the GNU version of the Collaborative International Dictionary of English
  • adverb. In an invisible manner.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • adverb. In a way that can not be seen; in an invisible manner.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • adverb. without being seen
  • Word Usage
    "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."