To unscramble the word 'abyssopelagic', follow these steps: 1) Write down the letters: a, b, y, s, s, o, p, e, l, a, g, i, c. 2) Look for common prefixes or suffixes; in this case, 'pelagic' is a recognizable suffix. 3) Experiment with different combinations of letters, starting with the known suffix. 4) Use online anagram solvers or word unscramblers for assistance if needed. 5) Keep track of the combinations you create to avoid repetition.