answer, do, pass for, adequate, behove, avail, beseem, sustentate, bestand, enable, more...

insufficient, inadequate, lacking, unsatisfactory, deficient

sufficient, sufficiently, sufficientness, insufficiency, insufficiently, insufficientness, more...

longer, present, scarce, single, much, few, above, general, simpler, mere, past

be enough,   make adequate,   to be enough,   have enough,   be adaquate,   get enough,   all it took,   to have enough,   all it takes,   serve its purpose