Evenest

5 clues
Least bumpy
Most smooth
Least out-of-line
Superlatively smooth
Most free of fluctuations
Similar answers:
13,reve
Abeverage
Abouteve
Abovesealevel
Aceuponessleeve
Aceventura
Achickenineverytot
Achieve
Achieved
Achievedvictory
Achievement
Achievementtest
Achieveonesgoal
Achiever
Achievers
Achieves
Achievesuccess
Actorslinestcirtsnoc
Adamaeve
Adamandeve