Modifies a noun

• blessing: But having secured those two inestimable blessings, the next thing is to have something to do.

• value: For him, the Commune, despite its failure, was a symbol of inestimable value.

• advantage: Feeling you are a part of a learning group on a shared journey is an inestimable advantage.

• importance: This, teachers note, is of inestimable importance from the very beginning of anyone's playing career.

• benefit: In addition, attending a full-time course has inestimable benefits for the practical elements, for example, mobility.