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.
These were our most formative years in terms of brain development (or, to return to our analogy, the nearly three years spent evolving your Nokia flip phone into a fully touchable and swipable iPhone).