These advanced prepositions express logical and reference relationships — exactly the kind of precise, cohesive language that earns top marks in academic writing and IELTS. This lesson covers regardless of, irrespective of, contrary to, prior to, and with regard to, including the popular regardless of vs irrespective of question.

Regardless of vs irrespective of

Good news: regardless of and irrespective of mean the same thing — “without being affected by”. They are interchangeable. The only difference is tone: regardless of sounds more natural in speech, while irrespective of is more formal and common in academic or legal writing.

• I don’t want it, regardless of the price.
• Irrespective of the price, I don’t want it.

Watch out: “irregardless” is not standard English — always use regardless.

Logical & reference prepositions in detail

Prior to vs before

Prior to simply means before, but it is more formal. In everyday English, before is usually the better, clearer choice; reserve prior to for formal or technical writing.

• Formal: Please complete the form prior to your appointment.
• Natural: Please complete the form before your appointment.

Common mistakes to avoid

• ❌ irregardless of the cost → ✅ regardless of the cost
• ❌ contrary of expectations → ✅ contrary to expectations
• ❌ prior of the meeting → ✅ prior to the meeting

💡 IELTS tip

These connectors help you signal logic in IELTS Writing Task 2: “Contrary to popular belief…”, “This applies irrespective of income…”. They show an examiner you can handle abstract, academic relationships — a Band 8 feature when used accurately.

FAQ

Is there any difference between regardless of and irrespective of?

No real difference in meaning — both mean “without being affected by”. Irrespective of is simply more formal. Avoid the non-standard “irregardless”.

Does “prior to” just mean “before”?

Yes. Prior to = before, but more formal. For clear, natural writing, before is usually preferable.

Related on Simply IELTS

• ➡️ Continue: Lesson 11: Rare & Literary Prepositions
• 📚 Part of the Prepositions in English course.
• 🔗 Related: Complex sentences & noun clauses for Band 7.