Antonyms of adj abyssal

1 of 2 senses of abyssal

Sense 2
abysmal, abyssal, unfathomable -- (resembling an abyss in depth; so deep as to be unmeasurable; "the abyssal depths of the ocean")

INDIRECT (VIA deep) -> shallow -- (lacking physical depth; having little spatial extension downward or inward from an outer surface or backward or outward from a center; "shallow water"; "a shallow dish"; "a shallow cut"; "a shallow closet"; "established a shallow beachhead"; "hit the ball to shallow left field")

Similarity of adj abyssal

2 senses of abyssal

Sense 1
abyssal -- (relating to ocean depths from 2000 to 5000 meters)

Sense 2
abysmal, abyssal, unfathomable -- (resembling an abyss in depth; so deep as to be unmeasurable; "the abyssal depths of the ocean")
       => deep (vs. shallow) -- (having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination; "a deep well"; "a deep dive"; "deep water"; "a deep casserole"; "a deep gash"; "deep massage"; "deep pressure receptors in muscles"; "deep shelves"; "a deep closet"; "surrounded by a deep yard"; "hit the ball to deep center field"; "in deep space"; "waist-deep")