"shamefaced" in the adjective sense
1. shamefaced
extremely modest or shy
"cheerfully bearing reproaches but shamefaced at praise"- H.O.Taylor
2. shamefaced, sheepish
showing a sense of shame
3. guilty, hangdog, shamefaced, shamed
showing a sense of guilt
"a guilty look"
"the hangdog and shamefaced air of the retreating enemy"- Eric Linklater
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License