Creep

antipatico

(informal: annoyingly unpleasant person)

deriva

(slight displacement)

lecchino

(informal: annoyingly unpleasant person)

ruffiano

(informal: annoyingly unpleasant person)

scollamento

(geology: imperceptible downslope movement of surface)

scorrimento

(slight displacement)

spostamento

(slight displacement)

strisciare

(movement of something that creeps)

abbarbicarsi

(to grow across a surface rather than upwards)

insinuarsi

(to move in a stealthy or secret manner)