Austral rhymes with:
ancestral, astral, ministral, minstrel, mistral, orchestral, ancestral, astral, bottrell, cantrall, central, cottrill, cutrell, entrail, futral, gartrell, gatrell, kittrell, littrell, luttrell, luttrull, ministral, minstrel, mistral, mitral, neutral, orchestral, ventral
Austral sounds like:
actuarial, astral, austerely, australia