How to Say "indefinite" in Spanish
The Spanish word for “indefinite” is “indefinido” — B1 level. This is a very common word in everyday Spanish.

Examples
Tengo un contrato indefinido en mi nuevo trabajo.
I have a permanent contract at my new job.
Ella siente un malestar indefinido.
She feels a vague sense of discomfort.
La reunión se pospuso por tiempo indefinido.
The meeting was postponed for an indefinite period of time.
Matching the word it describes
Since this is an adjective, you need to change the ending to match what you are talking about. Use 'indefinido' for masculine things and 'indefinida' for feminine things.
Positioning
Usually, you place this word after the person or thing you are describing, like 'un contrato indefinido' instead of 'un indefinido contrato'.
The 'Contract' Confusion
Mistake: “Thinking 'indefinido' means 'uncertain' in a job context.”
Correction: In the world of work, 'indefinido' is actually great news! It means your job is permanent and doesn't have a set end date.
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