Infer the meaning of the word "Conventional" based on the context clues provided in the paragraphs.
Paragraph 1 (Character Reaction): The teacher smiled, saying the format resembled what she had seen for decades.
Paragraph 2 (Cause and Effect): Because the family followed old customs, their holiday looked the same each year.
Paragraph 3 (Contrast): While some artists broke rules, he stayed with familiar methods.