"the law itself was unclear on that point"; "the reason for their actions is unclear to this day"
is similar to
unclear in form or expression
"the blurred aims of the group"; "sometimes one understood clearly and sometimes the meaning was clouded"- H.G.Wells
is similar to
lacking clarity of meaning; causing confusion or perplexity
"sent confusing signals to Iraq"; "perplexing to someone who knew nothing about it"; "a puzzling statement"
is similar to
not clearly understood or expressed
"an obscure turn of phrase"; "an impulse to go off and fight certain obscure battles of his own spirit"-Anatole Broyard; "their descriptions of human behavior become vague, dull, and unclear"- P.A.Sorokin; "vague...forms of speech...have so long passed for mysteries of science"- John Locke
see also
having more than one possible meaning
"ambiguous words"; "frustrated by ambiguous instructions, the parents were unable to assemble the toy"
see also
not transmitting or reflecting light or radiant energy; impenetrable to sight
"opaque windows of the jail"; "opaque to X-rays"
see also
difficult to understand
"the most incomprehensible thing about the universe is that it is comprehensible"- A. Einstein
see also
vague or not clearly defined or stated
"must you be so indefinite?"; "amorphous blots of color having vague and indefinite edges"; "he would not answer so indefinite a proposal"
see also
not clearly defined or easy to perceive or understand
"indistinct shapes in the gloom"; "an indistinct memory"; "only indistinct notions of what to do"
is an attribute of
free from obscurity and easy to understand; the comprehensibility of clear expression