Things That Are Disappointing with X

• xenophobia

  Fear and hatred of outsiders, deeply disappointing attitude.

• X-ray

  Often linked with injuries or illness, can disappoint.

• Xerox

  Brand name used for photocopies; bad copies disappoint.

• X-men

  Fictional team; movies/comics can disappoint fans.

The words in the list Things That Are Disappointing with X come from players of the word game City, Country, River.