The slightest disturbance was enough to unsettle the picture -- suggesting uncertainty beneath the calm exterior.
Susie Gilbert and Jay Shir A TALE OF FOUR HOUSES: Opera at Covent Garden, La Scala, Vienna and the Met since 1945 (2003)
Do not be fooled by the cool, calm exterior.
Times, Sunday Times (2011)
Despite his calm exterior, he has always been extremely competitive.
Times, Sunday Times (2011)