quandary
Concise Oxford English Dictionary © 2008 Oxford University Press:
quandary /ˈkwɒnd(ə)ri/
▶noun (pl. quandaries) a state of uncertainty over what to do in a difficult situation: Kate was in a quandary.
– origin C16: perh. partly from L. quando ‘when’.
'quandary' also found in these Oxford entries:

