1. A class of religious people who profess to have direct intercourse with the Spirit of God.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• mustic,
• metics,
• mastick,
• mistacs,
• mystries,
• mostis,
• mistic,
• aestics,
• musics,
• mestiks,
• mistick,
• mastice,
• mystifys,
• mysticly,
• misticl,
• phystics,
• tastics,
• myitis,
• myrtis,
• jystico

• myositis,
• myosotis,
• mystically,
• mystical,
• mastic,
• mysticism,
• mystic,
• mystique,
• mysticeti.

The adjective form of the word "mystics" is "mystical".