BE UNINTELLIGIBLE &c. adj.; require explanation [See Interpretation]; have a doubtful meaning, pass comprehension.
RENDER UNINTELLIGIBLE &c. adj.; conceal [See Concealment]; darken [See Darkness]; confuse (derange) [See Derangement]; mystify, perplex (bewilder) [See Uncertainty].
NOT UNDERSTAND [See Intelligibility]; lose, - the clew; miss; not know what to make of, be able to make nothing of, give it up; not be able to -account for, - make head or tail of; be at sea (uncertain) [See Uncertainty]; wonder [See Wonder]; see through a glass darkly (ignorance) [See Ignorance].
not understand one another; play at cross-purposes (misinterpret) [See Misinterpretation].