irritant

Irritant means: Rendering null and void; conditionally invalidating.. It is mainly Scottish English and may not be understood outside that context. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.

irritant means: Rendering null and void; conditionally invalidating.. Register: formal, legal English. Standard in its technical domain but rare in everyday talk; gloss with a plain synonym when writing for a general audience. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.