intranquilo - disquieted, worried, nervous, uneasy,...
  intrascendente - insignificant, unimportant
  intrínseco - intrinsic, inherent
  ido - absent-minded, oblivious, somewhat crazy
  intocable - untouchable, sacred, taboo, sacrosanct
  el habla - speech (the ability to speak),...
  hortera - in bad taste, tacky, vulgar, crude,...
  el hoyuelo - dimple
  el hada - fairy
  el huerto - garden for growing fruits and/or...
  la hormiga - ant
  hábil - skillful, able, clever, suitable,...
  el hacha - ax, hatchet
  el hálito - breath, gentle breeze
  el harén - harem
  la harina - flour
  la hebra - thread, strand, string, fiber
  la hebilla - buckle, clasp
  al hazmerreír, la hazmerreír - laughingstock, butt of jokes
  la helada - frost