Synonyms for shallow

modified

1. Lacking physical depth

   shoal, depthless, slight, inconsiderable, superficial, with the bottom in plain sight, with no depth, with little depth, not deep, as deep as a mud puddle*, not deep enough to float a match*, no deeper than a heavy dew*.

   Antonyms deep*, bottomless, unfathomable.

2. Lacking intellectual depth

   superficial, simple, silly, trifling, frothy, insane, frivolous, superficial, petty, foolish, farcical, idle, unintelligent, piffling*, piddling*, namby-pamby*, lightweight*, wishy-washy*; see also dull 3, stupid 1.

   Antonyms profound*, philosophic, wise. See syn. study at superficial.superficial.