vivacious

Example:The meeting was dreary, lacking the vivacious energy that had made previous meetings exciting.

Definition:of little interest or charm; monotonous

Example:The annual meeting was turned into a dull staid event, completely losing its vivacious charm.

Definition:marked by staidness and formality, lacking spirit or liveliness

Example:He was languid and uninterested, easily contrasting with the vivacious personalities around him.

Definition:marked by lack of energy, spirit, or alertness; slack

Example:The crowd was dull, needing some vivacious energy to shake things up.

Definition:lacking spirit or energy; not lively or interesting

Example:His presentation was pale and unimaginative, totally in contrast to the vivid and vivacious lecturer before.

Definition:lacking spirit, vivacity, or verve