Vague (adjective) غیر واضح، غیر معین، مشکوک
of uncertain, indefinite, or unclear character or meaning.
Example: “many patients suffer vague symptoms”
Inexplicable (adjective) ناقابل تشریح، ناقابل بیان
unable to be explained or accounted for.
Example: “for some inexplicable reason her mind went completely blank”
