Polyimide precursor, resin composition, insulated electric wire, and flexible substrate

A polyimide precursor, comprising:

• a polyimide precursor obtained by a reaction between a diamine compound and a tetracarboxylic dianhydride compound, wherein
• the diamine compound contains an aromatic diamine and an alicyclic diamine, the alicyclic diamine containing at least one type selected from the group consisting of 4,4′-methylenebis(cyclohexylamine) and norbornane diamine,
• an amount of the aromatic diamine is 40 mol % or more and 80.0 mol % or less with respect to a total amount of the diamine compound,
• the tetracarboxylic dianhydride compound contains at least one type selected from the group consisting of an aromatic tetracarboxylic dianhydride and an alicyclic tetracarboxylic dianhydride, and
• a total amount of the alicyclic diamine and the alicyclic tetracarboxylic dianhydride is 5.0 mol % or more and 30.0 mol % or less with respect to a total amount of constituent monomers of the polyimide precursor.