puzzling in WordNet English dictionary

1. lacking clarity of meaning; causing confusion or perplexity
   "sent confusing signals to Iraq"; "perplexing to someone who knew nothing about it"; "a puzzling statement"
   confusing  perplexing  puzzling 
   
2. not clear to the understanding
   "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"
   enigmatic  enigmatical  puzzling