Dicey(adjective)
(Unpredictable and potentially dangerous.)
Hindi meaning:जिस के बारे में भरोसे से कुछ कहना संभव न हो
Synonyms: Risky, Uncertain, Unpredictable, Precarious, Unsafe, Dangerous, Perilous
Antonyms: Certain, Safe, Sure
Example: Starting a business alone may sometimes a dicey proposition.
Trick to remember: Title milte hi aese log Volatile ho jate hai. 
