No Sense Of Direction
Bad Sense Of Direction
This is a combination of the words 方向 and 音痴. When your sense of direction is tone-deaf, it means you have no sense of direction. You get lost no matter how hard you try.
ほうこうおんち
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
私は方向音痴で、すぐ道に迷います。
I have no sense of direction so I get lost immediately.