Words Carry Dress Codes

Yummy is not incorrect English; it is informal, which is why essays, reports, and client documents reject it while messages between friends welcome it. Formal writing runs a dress code, and every word either honours it or breaks it. Here is the test, the fixes that actually work, and the five words to sweep first.

Yummy is not wrong; it is informal

Yummy is not incorrect English; it is informal, which is why essays, reports, and client documents reject it while messages between friends welcome it.

Academic-writing guidance classifies words like yummy under language that is too informal, alongside colloquialisms and slang, and the objection is never grammar: the sentence is built correctly, but the word promises a casualness the document never offered. That is why nobody complains about yummy in a family text message, and the same word sinks a food review an examiner reads. Register, not correctness, is the whole judgement.

The dress-code test

Imagine the word read aloud by the document's speaker in front of its audience, and swap any word that would embarrass the speaker, because formality is a dress code the document either honours or breaks.

1. Name the document's speaker and audience: you, in an essay, addressing an examiner.
2. Picture the word said aloud in that setting, at that formality.
3. If the speaker would wince, swap the word before the audience reads it.

The test catches far more than yummy: style guides list vague and informal expressions such as good, bad, a lot, thing, and stuff among the words formal writing avoids. One honest exception exists: a brand voice built on deliberate candour can licence casual words, but that is a strategy decided on purpose, not a habit that drifted in.

Swap for precision, not for fancy

Replace the childish word with a precise description, because precision is what formal register actually rewards and a fancy synonym that clouds meaning fails the same test.

Worked example: "The chicken was really yummy." First fix, the thesaurus trap: "The chicken was delectable" is still vague, just dressed up. The precise fix: "The chicken was tender, with a crisp skin and a sharp chilli glaze." Precision is what made the childish word feel wrong in the first place; "yummy" was standing in for description the writer had not done. A thesaurus page for yummy happily offers a dozen alternatives, and most of them simply repeat the vagueness in nicer clothes.

The five usual suspects

Sweep the five informal words style guides cite most: yummy, stuff, guys, a lot, and good, replacing each with a phrase that says what it actually means.

• yummy, tasty: name the actual taste, texture, or result.
• stuff, things: name the items, factors, or materials.
• guys: name the group, the team, the audience, the readers.
• a lot: give the number, the share, or the frequency.
• good, bad: say in what way, measured by what.

The sweep takes one pass with a document you already wrote, and the list is a starting sweep rather than the whole register; once the habit forms, the dress-code test catches the rest on sight. For documents that reach mixed audiences, the audience audit handles assumed knowledge; this page handles your own voice.

This is not the audience audit

The audience audit removes assumed knowledge for your readers, and this page removes casual register from your own voice; the owing-to and affect pages run the same test on function words.

All three are single-pass edits that never change what the document claims; if a swap moved the meaning, it was the wrong swap, and it should be reverted. If workplace documents are where your register wobbles, iWorld Learning's Business English course trains formal writing on real documents; confirm live course details with the school.

FAQ

The wrongness question and the colleagues question follow the test.

So is using yummy actually wrong?

It is never a grammar error; it is a register mismatch, and the penalty is only paid in documents that promise formality, such as essays, reports, and client deliverables. In a message to a friend, yummy is exactly the right word.

What about email to close colleagues?

Match the room: a team chat can stay casual, but anything forwarded upward or to clients inherits formal register, so sweep documents by their widest likely audience rather than their first one.