hide (your) head in the sand

to refuse to think about an unpleasant situation.

Teachers can't just hide their heads in the sand and not try to find out why students aren't doing better.

Usage notes: also used with bury and other verbs:

All Olivia wanted to do was bury her head in the sand and forget everything.

• feel free
• feel free to
• feel free to do something
• feel hard done-by
• feel honour-bound
• feel honour-bound to do something
• feel hot and cold
• feel hot and cold all over
• feel in bones
• feel in your bones
• feel light-headed
• feel like
• feel like a million dollars
• feel like something
• feel like yourself
• feel more like
• feel more like yourself
• feel oats
• feel out
• feel sick to stomach
• feel sick to your stomach
• feel someone out
• feel someone up
• feel something in bones
• feel something in your bones