Synonym of the word ADDITIONAL

adj. (mathematics) Pertaining to addition; that can be, or has been, added.
adj. (mathematics, of a function, etc.) Distributive over addition.
adj. (algebra) Having addition as an operator.
adj. (chemistry) Pertaining to chemical addition.
adj. (genetics) Describing genes (or the interaction etc. of such genes) which govern the same trait and whose…
n. A substance added to another substance or product for its ability to alter its properties.
n. (grammar) A word or phrase that adds something, such as also, even, or nor.

adj. Beyond what is due, usual, expected, or necessary; extraneous; additional; supernumerary.
adj. (dated) Extraordinarily good; superior.
adj. (Canada, US, slang) Over-the-top; going beyond what is normal or expected, often in a dramatic mannner.
adv. (informal) To an extraordinary degree.
n. (cricket) A run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball;…
n. An extra edition of a newspaper, which is printed outside of the normal printing cycle.
n. (acting) A supernumerary or walk-on in a film or play.
n. Something of an extra quality or grade.

Synonyms of the word