undertrycka bedeutet auf Englisch

stifle [stifled, stifling, stifles]▼(to keep in, hold back, or repress (something))
verb
[UK: ˈstaɪ.fəl] [US: ˈstaɪ.fəl]

strangle [strangled, strangling, strangles]▼(to stifle or suppress)
verb
[UK: ˈstræŋ.ɡl̩] [US: ˈstræŋ.ɡl̩]

suppress [suppressed, suppressing, suppresses]▼(to hold in place, to keep low)
verb
[UK: sə.ˈpres] [US: sə.ˈpres]

throttle [throttled, throttling, throttles]▼verb
[UK: ˈθrɒt.l̩] [US: ˈθrɑːt.l̩]

suppression [suppressions]▼noun
[UK: sə.ˈpreʃ.n̩] [US: sə.ˈpreʃ.n̩]

repressive▼(serving to repress or suppress; oppressive)
adjective
[UK: rɪ.ˈpre.sɪv] [US: ri.ˈpre.sɪv]