Synonyms and related words :
amiss, astray, at a disadvantage, at the nadir, below, below deck, below par, below standard, belowstairs, beside the mark, beside the point, bootlessly, down below, downstairs, far from it, fruitlessly, in the gutter, in vain, infra, least, least of all, less, off, short of, substandard, to no purpose, under, under par, underfoot, vainly,