I’ve been calling them ne’er-do-wells lately, or sometimes layabouts.
rapscallions , knaves, scamps
knaves is a new one for me, thanks.
Scallywags
Malcontents
This one is going on the list.
Milquetoast dandies.
Rabble-rousers
Jackanapes
Scrimshankers! I always imagine that word in Mr Burns’ voice for some reason.
whippersnappers
Gadabouts
Ruffians, roustabouts
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It might not be quite what you’re looking for but some of these maybe.
https://arapahoelibraries.org/blogs/post/names-for-groups-of-animals/
Nothing a teenager loves more than learning something along the way
Vagabonds is a good one.
Blodgers (use Australian accent) Bloh-jah!
Point of order, OP asked for disused words, not frequently used words.
Not so much disused but rarely used these days:
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Nincompoop. (Fun fact: it’s a mangling of Latin “non compos mentis” = “not of sound mind”)
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Gibbering wretch.
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Navel starer.
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Halfwit.
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Dunce
Actually rare / disused:
- Flibbertygibbet. Means “airhead” which itself is a kind of weird word, but is better known. Both usually applied to girls and young women, but can also be used for males, etc.
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