15-Letter Words Containing: A,E,N,N,R,S,U

• A 150-year anniversary.

• high-flown style; excessive use of verbal ornamentation

• of or relating to a 500th anniversary

• the 500th anniversary (or the celebration of it)

• Pseudocyesis or false pregnancy

• The persistence of the corpus luteum following infertile copulation in some mammals

• action intended to keep a country politically neutral or exclude it from a possible war

• a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water

• (euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation)

• action intended to nullify the effects of some previous action

• violating accepted standards or rules

• impossible to measure or compare in value or size or excellence

• not having a common factor