Ebullience
Noun: quality of lively or enthusiastic expression of thoughts and feelings
Facetious
Adj: playful, humorous
Gregarious
Adj: sociable, outgoing
Odious
Adj: evoking intense aversion or dislike
Penurious
Adj: penny pinching, stingy
Pernicious
Adj: extremely harmful, potentially causing death
Quiescence
Noun: stillness
Redoubtable
Adj: Awe-inspiring, worthy of honor
Aver
Verb: to state, declare, or assert
Dissemble
Verb: to disguise or conceal
Endemic
Adj: characteristic of a locality, region, or people
Halcyon
Adj: calm and peaceful
Impassive
Adj: revealing no emotion
Impunity
Adj: immune from punishment or penalty
Occlude
Verb: to obstruct or block