Similar word to parenthetical:

bracketed, by the way, episodic, explanatory, extraneous, extrinsic, in parenthesis, incidental, inserted, intermediate, interposed, qualifying, related, subordinate


A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Popular