Under dream meaning is explained below using 5 different sources. Each interpretation is shown with its source.

Interpretation 1 — James R. Lewis and Evelyn Dorothy Oliver

Anything that is obscured by being underneath something else can represent the contents of one’s unconscious mind. Dreaming about seeing something beneath oneself can be about feelings of superiority or feelings of being on top. Alternatively, dreaming about being under someone or something can represent a feeling of being oppressed. Also note the possibility that this dream image might be drawing on a familiar idiom, such as “under the weather,” “under someone else’s wing,” “under someone else’s thumb,” “under the counter,” or “under one’s nose.”
Source: Dream Symbols in The Dream Encyclopedia Author: James R. Lewis and Evelyn Dorothy Oliver

Interpretation 2 — Dream Explanations - Anonymous

A dream of feeling under the thumb, under the control, under the scrutiny, or under someone’s authority is telling you that you have allowed yourself to be in a weak position. Also, this dream can be showing you that you are searching for truth that lies beneath the surface. Alternatively, if something under, as in the ground under your feet, can represent support and even unconditional love. Consider the feeling tone of this dream to discern its message for you.
Source: Strangest Dream Explanations Author: Dream Explanations - Anonymous

Interpretation 3 — Nancy Wagaman

Below something or someone.

Being or feeling subordinate to someone or something.

Something judged as inferior or unworthy.

Subject to an activity or process (as in “under observation,” “under surveillance,” or “under investigation”).

Covered, obscured, hidden, or secret (as in “under wraps”).

More basic, or something that serves as a foundation for something else.

See Low, Cover, Hiding, Inferior, Descending, Bottom

Source: The Curious Dreamer’s Dream Dictionary Author: Nancy Wagaman

Interpretation 4 — Vincent Wienand

1. Inferior position;

2. Hidden; Deut. 28:13.

Source: Dream Dictionary The Biblical Model Author: Vincent Wienand

Interpretation 5 — Margaret Hamilton

Vulnerable position or status
Source: Dream Dictionary Unlimited Author: Margaret Hamilton