Predetermined means decided in advance, before anything began. The route, the budget, the order of speakers — all settled beforehand.
This is the everyday, administrative cousin of predestined, and the difference matters: predestined suggests fate, while predetermined suggests a person with a plan and a diary. You meet it in procedure and science — a predetermined time limit, a predetermined set of questions, samples taken at predetermined intervals. In an experiment, saying the criteria were predetermined is a claim about honesty, since it means nobody chose them after seeing the results.
1adjectivepredeterminedDecided or arranged in advance.
“The prizes were awarded on predetermined criteria.”
synonyms: prearranged, preset
From pre + determined.
Etymology from Wiktionary, CC BY-SA