mięczak bedeutet auf Englisch

mollusc▼noun
soft-bodied invertebrate of phylum Mollusca

sleazebag▼noun
morally reprehensible, disreputable, or sleazy person

weakling▼noun
person of weak character

weed▼noun
informal: puny person

wimp▼noun
someone who lacks confidence

wuss▼noun
weak, ineffectual person

water warts▼