monotono bedeutet auf Englisch

dull [duller, dullest]▼(boring, not exciting or interesting, see also: boring)
adjective
[UK: dʌl] [US: ˈdəl]My job is dull and boring. = Il mio lavoro è noioso e monotono.

monotonous▼(tedious, repetitious or lacking in variety)
adjective
[UK: mə.ˈnɒ.tə.nəs] [US: mə.ˈnɑː.tə.nəs]I'm tired of the monotonous life. = Sono stanco della vita monotona.