Adjective

(en adjective)

Ready to do something that is not (can't be expected as) a matter of course.

*

, title=(The Celebrity), chapter=5 , passage=In the eyes of Mr. Farquhar Fenelon Cooke the apotheosis of the Celebrity was complete. The people of Asquith were not only willing to attend the house-warming, but had been worked up to the pitch of eagerness. The Celebrity as a matter of course was master of ceremonies.}}

*{{quote-magazine, date=2013-06-07, author=David Simpson

, volume=188, issue=26, page=36, magazine=(The Guardian Weekly) , title= Fantasy of navigation , passage=Like most human activities, ballooning has sponsored heroes and hucksters and a good deal in between. For every dedicated scientist patiently recording atmospheric pressure and wind speed while shivering at high altitudes, there is a carnival barker with a bevy of pretty girls willing to dangle from a basket or parachute down to earth.}}

Adjective

(en adjective)

likely to be affected by something

He was susceptible to minor ailments.

easily influenced or tricked; credulous

(medicine) especially sensitive, especially to a stimulus

that, when subjected to a specific operation, will yield a specific result

Rational numbers are susceptible of description as quotients of two integers.

A properly prepared surface is susceptible of an enduring paint job.

vulnerable; (temporarily) defenseless

* 2013 , Daniel Taylor, Rickie Lambert's debut goal gives England victory over Scotland'' (in ''The Guardian , 14 August 2013)[http://www.theguardian.com/football/2013/aug/14/england-scotland-international-friendly]

The visitors were being pinned back by the end of the first half. Yet Gordon Strachan's side played with great conviction and always had a chance of springing a surprise when their opponents were so susceptible at the back.