Synonyms: perplexing, confusing, puzzling
Definition: lacking clarity of meaning; causing confusion or perplexity
Usage: sent confusing signals to Iraq; perplexing to someone who knew nothing about it; a puzzling statement
Similar words: unclear
Definition: not clear to the mind
Usage: the law itself was unclear on that point; the reason for their actions is unclear to this day
Synonyms: enigmatic, enigmatical, puzzling
Definition: not clear to the understanding
Usage: I didn't grasp the meaning of that enigmatic comment until much later; prophetic texts so enigmatic that their meaning has been disputed for centuries
Similar words: incomprehensible, uncomprehensible
Definition: difficult to understand
Usage: the most incomprehensible thing about the universe is that it is comprehensible- A. Einstein