spannend

Adjective

 * 1) tensive
 * 2) exciting
 * Het is een spannend verhaal. — It's an exciting story.

Adjective

 * 1) thrilling, exciting, gripping, enthralling, spellbinding
 * 2) interesting

Usage notes
Often better translated using the noun "suspense", for example: The suspense is building. (Es wird immer spannender.)