adjective
firmly established and not easily changed
adverb
in a strict or inflexible manner
-
In order to achieve success, it is important to set hard and fast deadlines for project completion.
-
We need to come up with some hard and fast rules for our road trip.
-
Let's lay down some hard and fast rules so there's no confusion.
-
She lived her life by the motto of 'work hard and play hard', taking a hard and fast approach to everything she did.