Synonyms and related words :
be a sideliner, be still, coast, constipate, decay, decline, decompose, degenerate, delay, deteriorate, do nothing, drift, fust, go to pot, go to seed, hang fire, hibernate, idle, just be, languish, lie dormant, merely exist, moulder, not budge, not stir, pass the time, rest, rot, rust, sit back, sit it out, sleep, slumber, smolder, spoil, stifle, trammel, vegetate, wait and see, watch and wait