ostrichism
noun
os·trich·ism
| \ |ˌchizəm, |ˌji-\
plural -s
Definition of ostrichism
: the deliberate avoidance or ignorance of conditions as they exist : self-delusion
ostrichism will not, of course, save one single American— Pearl Buck perhaps the lack of fear is a result of what might be called ostrichism— John Gunther