What Does "consistent with" Mean?
- Grammatical function: This expression is an adjectival phrase used as a connective to indicate agreement, harmony, or logical alignment between two ideas, facts, or behaviors. It suggests that one thing does not contradict another.
- Typical sentence position: It is most commonly found in the medial position (following a linking verb like "to be") or the final position. While less common, it can occasionally appear in the initial position when used as an introductory participial phrase.
- Register: It ranges from neutral to highly formal. It is a staple of academic, legal, medical, and journalistic writing.
How to Use It
- Syntactic patterns: The phrase is typically preceded by a subject and a linking verb (e.g., "The data is consistent with...") and followed by a noun phrase or a gerund.
- Punctuation rules: When used in the medial position after a verb, no commas are required. If used as an introductory parenthetical or a non-restrictive modifier at the end of a sentence, it may be set off by a comma.
- Grammatical flexibility: It can be easily negated by adding "not" before the adjective ("not consistent with") or by using the antonym "inconsistent with." It is flexible enough to describe both abstract theories and physical evidence.
- What sounds unnatural: Using the phrase to describe a direct cause-and-effect relationship is incorrect; it describes compatibility, not necessarily causation. Avoid using it with verbs that imply action rather than state of being.
Real-World Examples
These examples are sourced from consistent with on Ludwig.guru.
"That observation is consistent with our data." — journals.plos.org
"All the circumstances are consistent with suicide." — independent.co.uk
"That is consistent with nationwide trends." — nytimes.com
"It's consistent with special relativity." — sciencemag.org
"Be consistent with it." — nytimes.com
Examples sourced from https://ludwig.guru/s/consistent+with
Similar Phrases and Alternatives
| Phrase |
Context |
| in line with |
Very common in business; suggests following a specific policy or trend. |
| compatible with |
Often used for systems, ideas, or personalities that can coexist without conflict. |
| in accord with |
Highly formal; often used in legal or official documents. |
| congruent with |
Technical or mathematical nuance; implies a perfect match in shape or character. |
| matches |
Less formal; a direct verb used when two things are identical or very similar. |
Common Mistakes
- Wrong Preposition: Learners often use the wrong preposition, saying 'consistent to' or 'consistent of' instead of 'consistent with'.
- Misinterpreting Causation: Using the phrase to mean "caused by" is a mistake. It only means that two things fit together logically, not that one created the other.
- Redundancy: Avoid saying "mutually consistent with each other," as "consistent with" already implies a mutual relationship.
Quick-Reference Summary
| Expression |
Function |
Register |
Typical Position |
| consistent with |
Logical Alignment |
Neutral / Formal |
Medial |
FAQs
Can consistent with start a sentence?
Yes, consistent with can appear at the beginning of a sentence when it functions as an introductory adjectival phrase. In this case, it must be followed by a comma and modify the subject that immediately follows.
What is the difference between consistent with and in line with?
While both express agreement, consistent with is more frequently used in scientific or evidentiary contexts to show logical compatibility. In contrast, in line with is more common in corporate settings to describe following rules or expectations.
Is it correct to say consistent to or consistent of?
No, these are common errors; you must always use the preposition "with" after the adjective. Using consistent with ensures your writing is grammatically accurate and follows standard collocation patterns.