What does «nimio» mean in Spanish?

Small, insignificant, unimportant; generally said of something non-material.

Examples of use in Spanish: "cometió una falta nimia".

"fue un nimio conflicto doméstico".
Thorough, neat.

Examples of use in Spanish: "supuso una labor nimia".
Excessive, exaggerated, very large; usually said of something non-material.

Examples of use in Spanish: "la nimia comida y bebida dañan el cuerpo".