Big Huge Thesaurus

invariable

adjective

antonyms

• variable

related terms

• consistent
• constant

similar terms

• changeless
• constant
• fixed-income
• hard-and-fast
• invariant
• strict
• unvarying

noun

• constant
• constant quantity
• quantity

sounds kind of like

• imperviable
• improbable
• improbably
• improvable
• inoperable