Some of the best insults are the ones that come with enough of a smile and enough politeness that the other person doesn’t even realize they’re being insulted.Â
A tidy little detour

You can use this one whenever someone shares their opinion like it’s a fact. Tell them, ‘That’s certainly one way to look at it,’ because it doesn’t directly say that their idea is bad. Not exactly, anyway.
It’s a way of making their opinion sound more like an option, rather than the only option available. You could try saying, ‘I disagree,’ but that sometimes comes off a little rude, while this phrase makes them think their opinion’s still valid.
The velvet ribbon

‘I admire your confidence.’ It’s a line that works so well because, yes, it sounds kind of generous, but there’s a little sting to it that people only notice when they’re really paying attention. You sound like you’re complimenting them.
In reality, you’re telling them that they’re a little too confident about something that they shouldn’t feel so proud of. You’re saying that they’re wrong in one of the most subtle ways possible.
A pleasant curveball

Some people have a way of completely changing the atmosphere of a room as soon as they step inside. Not in a good way, though.
Try telling these people, ‘You always know how to surprise people,’ because they’ll probably take it in a good way.
However, ‘surprise’ is doing a lot of heavy lifting here, since you actually mean it in a negative way. They don’t know that, though. They’ll think that you’re being kind to them, that you’re saying they stand out, and sure, they do. But not for the reasons they expect.
A familiar pattern

They’re late. Again. Or maybe they’ve made the wrong guess three times in a row. Whatever the problem, you should say to any repeat offenders, ‘You’re definitely consistent’ because, technically, consistency can be a compliment.
It makes it seem as though you’re being polite, but really, you’re letting them know that you’ve noticed a pattern. You’re not exactly celebrating it, just acknowledging that you’re in the same place again.
No costume needed

One of the reasons ‘You’re not afraid to be yourself’ works so well is that it sounds so nice. It’s almost supportive.
At least, that’s how it comes across at first, because you’re actually telling the other person that they’re being too much of something.
Too loud, too blunt, too annoying, it doesn’t really matter because you haven’t actually said any of that. You’ve just given them praise for not restraining themselves, and they’ll take it as a good thing. It’s really not, though.
A confident seat

You can use ‘I respect how comfortable you are with that’ in a similar way. It’s one that’s perfect for when someone’s made quite a controversial choice, and you can’t believe they’re still going through with it.
It’s like telling them, ‘Good for you,’ except in an even more insulting way, if that’s possible. You’re not telling them that you agree with them or anything, you’re just letting them know that you think their comfort with their choice is great.
Room for silence

No need for any nervous laughter after someone says something a little awkward.
Just tell them, ‘You’ve given me something to think about,’ because it makes them think their words had value to you.
They don’t need to know that you think what they said was ridiculous, or that you completely disagree with it. They just need to think that you’re thinking about what they said, and sure, you are. It’s just not for the reasons that they expect.
The moving target

There are some people who manage to turn even the simplest of moments into an event, although not necessarily in a good way. That’s when you should tell them, ‘You certainly keep things interesting.’
‘Interesting’ sounds polite enough, and when you say it with a smile, they’ll have no idea what you really mean. The truth is, you’re subtly telling them that you’re tired of their drama now.
A polished knot

Dealing with someone who doesn’t seem to have any idea about what they’re saying? Don’t insult them directly, just tell them, ‘You do have a way with words.’
It makes it seem like you’re praising their delivery and not agreeing with everything they’ve said.
It’s one of those phrases that works particularly well when the other person’s being a bit too clever for the rest of the room. They think you’re giving them a compliment about their public speaking skills, even though you’re really not.
A different window

You’ll have to be a little careful when using the line, ‘You have such a unique perspective,’ because you don’t want to put too much emphasis on the word ‘unique.’
Why? Because it makes it clear that you’re being sarcastic about it.
Say it normally with a straight face, and they’ll believe that you’re genuinely praising their originality. Maybe they are actually being original, but that’s not always a good thing. It’s not like they need to know that.
Locked in place

Stubborn people are the worst, especially when they’re so fixed on an idea that’s quite clearly wrong. When that happens, tell them, ‘You’re very committed to that idea,’ as a way to give them credit for sticking with that one thought.
The trick here, however, is that you don’t actually give any points to what they’ve said, only their stubbornness. It’s respectful on the surface, but there’s a lot more going on with this phrase than they might actually recognize.
Sources: Please see here for a complete listing of all sources that were consulted in the preparation of this article.
10 passive-aggressive insults we often hear

Have you ever received such subtle insults that you nearly complimented the speaker before understanding you were being insulted? Passive-aggressive comments are an entire art form in themselves.