1. Without revealing one's identity
   - incognito

1. With your identity concealed
   - incognito

See also: concealed

• unescorted
• unessential
• unestablished
• unethical
• unethically
• uneven
• uneven bars
• uneven parallel bars
• unevenly
• unevenness
• uneventful
• uneventfully
• unexacting
• unexampled
• unexceeded
• unexcelled
• unexceptionable
• unexceptionably
• unexceptional
• unexchangeability
• unexchangeable
• unexcitable
• unexcited
• unexciting
• unexcitingly