Strange, not known, or not understood: Something strange or not known that has not yet been explained or understood: In a way that is strange, not known, or not understood:
Mud Logging Definition Mud Logging Forage KMFLVO
Mysterious and impossible to understand completely: Mysterious and impossible to understand. In a way that is strange, not known.
Something that is mysterious and seems impossible to understand completely:
Strange, not known, or not understood:
