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.
On the surface, the whole premise of and its meaning seems to be that time can be changed, given that Tenet's entire agenda is seemingly to go backward in time to stop the world from ending.
Source: https://screenrant.com/tenet-ending-explained-timeline-nolan-questions/