<p><strong>Noun</strong></p><ul><li>a person who holds that the answers to the basic questions of existence, such as the nature of the ultimate cause and whether or not there is a supreme being, are unknown or unknowable.</li><li>Synonyms: doubter, disbeliever, infidel, heretic, heathen, empiricism, secularism, skeptic, unbeliever, nonbeliever, pagan.</li><li>a person who denies or doubts the possibility of ultimate knowledge in some area of study.</li><li>a person who holds neither of two opposing positions on a topic: Socrates was an agnostic on the subject of immortality.</li></ul><p><strong>Adjective</strong></p><ul><li>of or relating to agnostics or their doctrines, attitudes, or beliefs.</li><li>asserting the uncertainty of all claims to knowledge.</li><li>not taking a stand on something, especially not holding either of two usually strongly opposed positions (often used in combination): He's known to take an agnostic view of technological progress.</li><li>The governor's fuel-agnostic energy policies were highly controversial.</li><li>(especially of digital technology) not limited or dedicated to a particular device, system, etc. (often used in combination): platform agnostic software.</li></ul>