IELTS language bank: Idioms Safe to Use in Speaking

Idioms occupy a strange, asymmetric place in IELTS preparation: candidates are frequently told that using idiomatic language raises a Speaking score, and this is true, but the same advice applied to Writing produces the opposite effect almost every time. The Speaking band descriptors explicitly reward "idiomatic language" as part of a high Fluency and Coherence and Lexical Resource score, and a native or highly proficient speaker genuinely does use small, natural idioms constantly in ordinary conversation. Writing, by contrast, calls for a more formal, controlled register throughout, and an idiom dropped into a Task 2 essay — even a correctly used one — reads as a mismatch, since essays don't conversationally hedge or colour their claims the way spoken answers do. This article is specifically about Speaking, and specifically about a small set of genuinely safe, natural idioms worth having ready, alongside an honest account of which idiom types backfire and why.

The first, and probably most useful, category is hedging and framing idioms — phrases that soften a claim or buy you a moment to organise your answer, both of which matter constantly across Part 1 and Part 3. "To be honest" / "honestly" works as a natural opener when your real answer is slightly less enthusiastic or more critical than the question might expect: "To be honest, I've never really given it much thought." "At the end of the day" signals you're about to state what you consider the most important, bottom-line point after weighing other considerations: "At the end of the day, I think it comes down to personal preference." "As far as I'm concerned" introduces a personal opinion with a slightly more considered, deliberate tone than a bare "I think": "As far as I'm concerned, public transport should be free for students." Each of these does real conversational work — buying thinking time, softening a claim, or signalling a personal stance — rather than existing purely to demonstrate idiomatic range.

A second category covers mild opinion and preference, useful throughout Part 1's more personal questions. "It's not my cup of tea" expresses mild, non-confrontational dislike or disinterest: "Reality TV really isn't my cup of tea." "I'm not really into..." works similarly for hobbies or activities: "I'm not really into contact sports, if I'm honest." "It grows on you" describes something you didn't like initially but have come to appreciate over time — genuinely useful for a Part 1 question about a food, a place, or a habit: "I wasn't sure about the city at first, but it's definitely grown on me." "Give or take" softens an approximate figure in a way that sounds far more natural in speech than a bare number: "I've lived here five years, give or take."

A third category is structural — idioms that help organise a longer Part 3 answer rather than expressing a specific opinion or feeling. "On the one hand... on the other hand..." remains one of the safest, most reliably natural ways to present two sides of an issue before settling on your own view: "On the one hand, remote work offers real flexibility; on the other hand, it can make collaboration a lot harder." "When it comes to..." introduces a specific angle on a broader topic you're about to narrow in on: "When it comes to education, I think early investment matters more than people realise." "More or less" softens a claim that's approximately but not exactly true, useful when a Part 3 question pushes you toward a more absolute claim than you actually believe: "That's more or less what happened in my own experience."