All rules

Double negative

double-negativeon by default (info)Japanese / English

A negative negated, such as "not uncommon" or "not unlike"

Example

Flagged
Delays are not uncommon in the second quarter.
What chaff prints
1:1 "not uncommon" is a double negative
Fixed
Delays are common in the second quarter.
What chaff prints
no finding

How to fix

Say it positively ("common", "similar to"), or say how far it holds ("in about a third of cases").

Why it matters

Negating a negative ("not uncommon", "not unlike") makes the reader turn the sentence over twice, and blurs which way the writer leans. If the claim holds, say it positively; if it only partly holds, say how far. "not without" is not counted, since "do not enter without a badge" is a plain prohibition. The phrases are listed in each language's lexicon.

What it does not flag

Fixed forms such as "not without" are not reported. The legal, literature and speech presets turn it off, since the hedged form is part of how those are written.

Turning it off or relaxing it

Silence this one spot (in the document)
<!-- stet: double-negative — reason -->
Relax it for the team (the reason is kept as a comment in chaff.yaml)
npx chaffjs relax double-negative --why "reason"
Turn it off for the team (chaff.yaml)
rules: double-negative: off
Technical details
Layer
L2
Status
stable
Severity
info
Languages
Japanese and English
Suited to
business, technical, blog, legal, docs, academic, literature, speech

Levels

Set a level for this rule under rules in chaff.yaml. With nothing set, it runs at the level its genre gives it (see By genre below).

strictreported once 1 sentences hold one
normalreported once 1 sentences hold one
relaxedreported once 2 sentences hold one

By genre

Runs by default in
technical/spec, technical/readme, blog/tech, blog/essay, blog/owned-media, business/proposal, business/report, business/email, business/press-release, business/meeting-notes, docs/manual, docs/faq, docs/glossary, academic/paper
Turned off by the genre in
legal/contract, legal/statute, legal/judgment, legal/patent, literature/fiction, literature/essay, literature/poetry, literature/play, speech/address, speech/transcript

Genres

Message

"{matched}" is a double negative

This page is built from the rule's definition file:packages/chaff/rules/double-negative.yaml