dull as dishwater (adjective) banal: commonplace
Sinonime: approach unnoticed, crawl on all fours,
edge, glide, grovel, gumshoe, inch,
insinuate,
lurk, pussyfoot, scrabble,
scramble, skulk, slink, slither,
snake*,
sneak, squirm,
steal, tiptoe, worm, wriggle,
writheAntonime: fresh,
new,
original