Consistency (noun)

1. The quality of having a steady and unchanging nature or pattern of behavior.
2. The ability of a substance to retain its shape and not flow or slump.

Origin:

Late middle english: from old french consistence or latin consistentia, from consistere 'stand together'.

Examples:

1. The consistency of her behavior was remarkable.
2. The consistency of the batter was perfect for making pancakes.
3. The consistency of his work was remarkable and earned him a reputation for reliability.
4. The consistency of the soup was too thick for her liking.
5. The consistency of the paint was just right for the artist's needs.