Synonyms of 'additive'
Copyright © 2016 by HarperCollins Publishers. All rights reserved.
Extras are things which are not necessary in a situation, activity, or object, but which make it more comfortable, useful, or enjoyable.
Optional extras including cooking tuition.
Thesaurus for additive from the Collins English Thesaurus
An additive is a substance which is added in small amounts to foods or other things in order to improve them or to make them last longer.