Upper-Intermediate (B2)
IPA: //ʌnˈbʌdʒəbl//
KK: /ʌnˈbʌdʒəbl/
Definition
Not able to be moved or changed; very firm in one's position or opinion.
Example
Despite the arguments, her decision remained unbudgeable.
Conversation

I tried to convince Sarah to change her mind, but she's completely unbudgeable on this issue.

Really? I thought she might be open to discussion.

Nope, once she's made up her mind, she's unbudgeable about it.

That's sort of frustrating, but I guess it shows how committed she is.
Synonyms & Antonyms
Synonyms
inflexible
unyielding
immovable
Antonyms
flexible
yielding
changeable
Root Explanation
Unbudgeable → It is formed from "un-" (meaning not) and "budge" (from Middle English *budgen*, meaning to move or shift) and "-able" (meaning capable of). The word "unbudgeable" means not capable of being moved or shifted.
Memory Tip
Think of something that cannot be 'moved' ('budge') at all, which is why it is described as 'not' ('un-') able to be moved.
Visually Confused Words
unbridgeable
unjudgable
unwedgeable
unpurgeable
unboundable
undyeable
unbidable
judgeable