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.
It resembles standard concrete but contains bubbles, making it lighter, more mouldable – and cheaper.
Source: https://www.sundaypost.com/fp/concrete-safety-audit/