Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

Q: Perhaps you say a bad joke or you make a really awkward noise, and everybody suddenly stares at you?.

A: This would be an awkward silence. An awkward silence is an uncomfortable pause in a conversation or presentation. The unpleasant nature of such silences is associated with feelings of anxiety as the participants feel pressure to speak but are unsure of what to say next.
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Q: English isn't my mother tongue, and when we recently talked to a native speaker (during some company audit), he pointed out that the plural word 'trainings' is actually wrong (he pointed that it is a very common mistake and was almost amused by it). I couldn't understand why and wondered what the correct plural of 'training' would be. Online Dictionaries/Thesaurus don't answer it, so it's probably another opinion-based statement. I haven't found a source to back it up, though.

A: Training is both countable and uncountable. Usually, referring to a process, it is uncountable and has no plural. It is sometimes used to mean 'a specific training event', and is then countable, and has the plural 'trainings'. The OED has examples of this use going back to 1578, with the plural recorded from 1598.
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Q: I'm describing what an opiate addict looks like before recovery. Instead of saying 'he looked like a vampire,' I'd like to say something like 'he looked [vampiric].' I actually just found out vampiric was a word, but I want something that sounds better (more colloquial/natural, I suppose) and covers a variety of traits (pale, emaciated, sickly, etc). Why I don't just use 'vampiric': As @chepner commented: I think the idea is to find a word that isn't so 'circular', and doesn't refer explicitly to vampires or require knowledge of vampires in context. If someone were to ask 'What does a vampire look like?', then 'It looks vampiric/vampirish' wouldn't be terribly helpful. I don't want to explicitly refer to drug addicts as vampires. I just want to capture those traits in the best way.

A:
I'd suggest cadaverous. It incorporates many facets of what I believe you're trying to convey: a corpse-like appearance, including pallid and underweight. From Merriam-Webster.com: 1a : of or relating to a corpse b : suggestive of corpses or tombs 2a : PALLID, LIVID b : GAUNT, EMACIATED grossly underweight
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