Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
All in all, the frightening and unknown terrors of the cosmos (or Lovecraftian Horror) without the aid visual or practical effects led to a masterfully-crafted episode that fans still praise to this day.
Source: https://www.cbr.com/doctor-who-most-haunted-crossover-bad-idea/