Find Synonyms

principle Synonyms

Another word for principle

Choosing another word for principle depends on context, so the 30 synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
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• noun (Context 1)

A fundamental truth, proposition, or assumption that serves as the foundation for a system of belief, behavior, or chain of reasoning.

Usage Example

"The legal system is built upon the fundamental truth that all individuals are equal before the law."

Strongest
truth
Strong
proposition
postulate
fundamental
concept
doctrine
theory
assumption
essential
idea

• noun (Context 2)

A moral rule, ethical standard, or personal code of conduct that guides right and honorable behavior.

Usage Example

"She refused to sign the misleading contract because doing so would violate her personal principles."

Strongest
morals
ethics
scruples
morality
Strong
integrity
rectitude
probity
conscience
honor
virtue

• noun (Context 3)

A general scientific theorem, natural law, or underlying mechanism that explains how a physical system or machine operates.

Usage Example

"Modern jet engines operate on the basic physical law of Newton's third law of motion."

Strongest
law
rule
Strong
theorem
axiom
canon
precept
tenet
maxim
formula
dictum

Opposites of principle

The opposite of principle shifts depending on context. Common opposites include:

unscrupulousness
corruption
dishonesty
immorality
anomaly
exception
deceit
fallacy
See all opposites of principle

• Nearby Words

principal
principality
principally
principle
principled
prinia
print

Cite this Entry

Wordmom. (2026). Synonyms for Principle. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/principle
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