Search Result for "fast-breaking": 
Wordnet 3.0

ADJECTIVE (1)

1. occurring rapidly as a series of events in rapid succession;
- Example: "the broadcast was interrupted by a fast-breaking news story about the invasion"



WordNet (r) 3.0 (2006):

fast-breaking
    adj 1: occurring rapidly as a series of events in rapid
           succession; "the broadcast was interrupted by a fast-
           breaking news story about the invasion"