Here's what rhymes with ethylcnediamine.
                        
                        
                    
                                nine  mine  line  fine  sign  wine  pine  shine  thine  dine  sine  vine  sein  tine  whine  zine  assign  benign  shrine  spine  align  brine  swine  twine  affine  malign  thymine  anodyne  asinine  opine  stein  aline  design  divine  decline  define  confine  dopamine  iodine  resign  undermine  incline  refine  supine  thiamine  underline  consign  monoamine  proline  saccharine  enshrine  calamine  entwine  realign  reassign  cosign  alkaline  turpentine  atropine  cysteine  palatine  pyridine  redefine  redesign  serpentine  hyperfine  imipramine  anticline  recline  recombine  byzantine  columbine  valentine  interline  reconsign  endocrine  borderline  epinephrine  concubine  centerline  waterline  crinoline  intertwine  superfine  timberline  eglantine  celandine  disincline  crystalline  exocrine  porcupine  clementine  norepinephrine  lacustrine  neuroendocrine  noncrystalline  tetracycline  polycrystalline  Words that almost rhyme with ethylcnediamine
mime  time  lime  rhyme  dime  hym  rime  beim  chime  heing  thyme  chyme  anteing  crime  prime  climb  clime  slime  grime  onetime  anytime  summertime  birdlime  sauteing  begrime  mistime  maritime  paradigm  sublime  overtime  pantomime  dinnertime  suppertime  lysozyme  mesenchyme  wintertime  flexitime  environ