1) Abashed 2) Ashamed 3) Guilty 4) Hangdog 5) Shamed 1) Bashful or modest 2) Extremely modest or shy 3) Modest 4) Showing a sense of guilt 5) Showing a sense of shame 
• (n.) Easily confused or put out of countenance; diffident; bashful; modest.
Easily confused or put out of countenance; diffident; bashful; modest. 'Your shamefaced virtue shunned the people's prise.' (Dryden) ... Shamefaced was once shamefast, shamefacedness was shamefastness, like steadfast and steadfastness; but the ordinary manifestations of shame being by the face, have brought it to its present orthography. Shame'face...
Shame'faced` adjective [ For shamefast ; Anglo-Saxon scamfæst . See Shame , noun , and Fast firm.] Easily confused or put out of countenance; diffident; bashful; modest. « Your shamefaced virtue shunned the people's prise.» ...
[adj] - extremely modest or shy 2. [adj] - showing a sense of shame
adjective showing a sense of shame adjective extremely modest or shy; `cheerfully bearing reproaches but shamefaced at praise`- H.O.Taylor