in the air prepositional phrase5 •In the surrounding ambience.As soon as we entered we could feel the excitement and tension in the air. •In the generally prevailing feeling, idea, atmosphere, or mood.Polo was nothing if golf were in the air! — 1902 •Prevalent without traceable origin or authority.There was a rumour about them in the air. •Not in a fixed or stable position; unsettled; up in the air. •Unsupported and liable to be turned or taken in flank.The army had its wing in the air.