Definition of "mysterious" []

• Of, relating to, or being a mystery: mysterious and infinite truths. (adjective)
• Simultaneously arousing wonder and inquisitiveness, and eluding explanation or comprehension: a mysterious visitor; mysterious conduct. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I must frankly admit, however, that, either owing to the derangement of my nerves, or my new impressions in my new lodgings, or my recent melancholy, I gradually began at dusk to sink into that condition which is so common with me now at night in my illness, and which I call mysterious horror."
• "Reinhard Kala Gertze, a Swapo member in training for a foreign affairs position in the movement, was arrested in 1983 and taken to what he described as a mysterious place."
• "Ability to know this model and rule constitutes what we call the mysterious excellence (of a governor)."