Italian-English translations for monotono

dull
us
All these knives are dullHe sat through the dull lecture and barely stayed awakeWhen does having a dull personality ever get you a girlfriend? Even if you get one, how does being dull help you keep a relationship for over a year?
flat
uk
us
The land around here is flatThat girl is completely flat on both sidesYour A string is too flat.

monotonic; monotone; monotonous
monotonousThink how monotonous Europe would have looked if the distribution had been equal everywhere. Se tutto fosse stato ripartito in modo esattamente uniforme, l'Europa avrebbe oggi un aspetto decisamente monotono.