prolixity — the quality of being unnecessarily wordy or lengthy in speech or writing

a businessman stands at a whiteboard giving an extremely long-winded presentation with excessive gestures and multiple diagrams. He continues talking and pointing at charts while time passes visibly on the wall clock. The simple topic has expanded into an overly complex explanation with too many unnecessary details. Audience members show clear signs of boredom, checking their watches, yawning, and looking exhausted. Some colleagues lean back in their chairs while others rub their temples in frustration. the quality of being unnecessarily wordy or lengthy in speech or writing