Answer: happiest

AnswerCrossword Clue
HAPPIESTMost joyous
HAPPIESTAdjective for a millionaire.
HAPPIEST"The ... Girl in the Whole U.S.A." (Donna Fargo hit)
HAPPIESTMost joyful
HAPPIESTContent to the max
HAPPIESTEpitaphs rearranged?
happiestFortunate and convenient
happiestFeeling or showing pleasure or contentment
happiestHAPPY, marked by joy
happiestWilling to do something
happiestUsed in greetings
happiest(of an event or situation) Characterized by happiness
happiestHaving a sense of confidence in or satisfaction with (a person, arrangement, or situation)
happiestInclined to use a specified thing excessively or at random
happiestSatisfied with the quality or standard of