The standard phrase is pros and cons, with pros first. “Cons and pros” is not technically a grammar error, but it sounds odd to most readers, and in formal writing it can look like a slip. The two words are a fixed pair, and a real-time checker like TypoGuard helps you keep that kind of wording natural as you type.
What “Pros and Cons” Means
Pros are the advantages of something and cons are the disadvantages. Together they describe both sides of a decision:
“Before buying a house, list the pros and cons of each neighborhood.”
“The new schedule has some pros and cons for the team.”
Where the Words Come From
Both words are shortened Latin. Pro comes from the Latin pro, meaning “for”, and con comes from contra, meaning “against”. So the phrase literally means “for and against”, which also explains the natural order: you state the case for something before the case against it.
Why the Order Is Fixed
Linguists call pairs like this frozen binomials or irreversible binomials: two words joined by “and” that almost always appear in one order. A study from Cornell University lists “pros and cons” alongside “salt and pepper” as a classic example, and finds that binomial orderings are remarkably stable across written English. Other familiar pairs work the same way: bread and butter, safe and sound, wear and tear. Reverse them and the phrase still makes sense, but it stops sounding natural.
Is “Cons and Pros” Ever Correct?
Yes, but rarely. You might deliberately reverse the order to put the drawbacks first for emphasis, for example when a report opens with the risks: “We start with the cons and pros of the proposal.” In ordinary writing, stick with pros and cons, since readers expect it and nothing distracts them from your point.
Pros and Cons: Common Mistakes
Apostrophes: the plural forms take no apostrophe. Write “the pros“, not “the pro’s”.
Verb agreement: the phrase is plural, so use plural verbs: “The pros and cons are clear”, not “is clear”.
Typos: a fast typist can turn “pros” into “prose” or “pro’s” without noticing. Always reread before you send.
Better Alternatives for Formal Writing
In reports and essays, you can vary the wording with advantages and disadvantages, benefits and drawbacks, strengths and weaknesses, or upsides and downsides. They carry the same meaning and keep long documents from repeating one stock phrase.
Catch It Before You Hit Send
Small slips like a stray apostrophe or a mismatched verb are easy to miss in a quick draft. TypoGuard’s free grammar checker reads your sentence as you write and fixes them in real time across Gmail, chats, and forms.
Want to stop double-checking small details like this? Install TypoGuard for free and let it handle them for you.
