deepest
adj.adj. the most extreme level of something that goes far down or far inside. You use it to describe the part of a hole, a feeling, or a secret that is the furthest from the surface.
adj. the superlative form of 'deep', indicating the maximum extent downward, inward, or in intensity. Often describes physical distance from a surface or the most profound degree of an emotion or thought.
The divers explored the deepest part of the lake.
She shared her deepest fears with her best friend during their long walk home.
The probe was designed to withstand the immense pressure found in the deepest trenches of the Pacific Ocean, where sunlight never reaches the seafloor.
Superlative form of 'deep'; typically preceded by the definite article 'the'.
the most deep partthe deepest partOne-syllable adjectives like 'deep' form the superlative by adding '-est' rather than using 'most'.