1. contained within or marked off by parentheses
2. qualifying or explanatory but not essential to the meaning

1. a word, phrase, or sentence inserted as an explanation or afterthought

Examples

• The parenthetical information was helpful but not necessary.
• She made a parenthetical comment about the weather.
• The author included several parenthetical remarks throughout the text.
• His parenthetical observation interrupted the flow of the argument.
• The essay contained too many parentheticals that distracted from the main point.
• Remove the parenthetical phrase to make the sentence clearer.
• That parenthetical about his childhood seemed out of place.