Part of speech:
The definition of optional is available, but not required.
Not compulsory or automatic
Liable to change; capricious:
Determined by independent arbiter.
Having the power to choose
Based on individual judgment or discretion
The definition of subjective is something that is based on personal opinion.
Find another word for discretionary. In this page you can discover 14 synonyms, antonyms, idiomatic expressions, and related words for discretionary, like: optional, left to discretion, discretional, changeable, arbitrary, judgmental, personal, elective, facultative, opinion and surprise.