So my main language is Greek and I read english and greek books. Depending on the book/author I may have 2-5 words per page that I may not understand (or at least I want to understand them better). Thus, many times after I finish a page, I use aard2 and either search the word in the english-to-english dictionary or (rarer) in the greek wiktionary for a translation. (For context, I'm reading ~mainly fantasy, sci-fi or dystopian books of the 20th and 21th century and currently I'm on "Croocked kingdom". I haven't dared to try reading a classic book in english.)
The issue is that this effectively slows me down by an extra ~50% time per page and I'm not even very sure that those words are remembered. I could simply keep reading without searching the words up and just use the context to get a vague sense of their meaning (or simply ignore them as they ~usually aren't necessary to the plot), but I think I'd miss on the whole experience by doing this and it doesn't address the underlying issue (being that I don't know english extremely well even if I have C2 and scored high on vocabulary), which will perpetuate the problem. I'd like to note that I have made searching words almost as efficient as it gets by using downloaded dictionaries, so I don't think I can reduce the time I spend looking up words by anything more, at least on paper books.
I'd like to ask anyone who searches up words like me:
Did you eventually reach a point where you learnt enough words this way, that it wasn't that much necessary to use dictionaries anymore? (I'd be kinda satisfied if I could reduce the frequnecy of unknown words to 1 per two pages or something.)
Similar to some of the other commenters, I'm a native English speaker and (especially now that I have an ereader) I'm often looking up words. Previously when reading physical books, I'd just go off the context and assume I vaguely knew what the word meant, because looking it up on my phone would be quite time-consuming. However now that I have the built-in dictionary on my ereader, I'm constantly using it. Does it slow me down a bit? Yes, but I think it's worth it. I see words popping up regularly that I was unsure about before but now I can define.
Ostentatious is a great word for example!
You said you were worried about not remembering them - Is there any way you can save the words you've looked up? Kobo has a cool thing where you can add these to 'My Words' and you then have a list of all the words you've saved, with the definitions to look back on. If you'd like you can then go through them to revise and hopefully they'll stick in your memory.
By the way, I would have assumed that English was your first language! You write extremely well.
Yes, aard2 has both history and bookmarks (though both limited to 100 most recent words), so I might just start revising them when I stop reading for the day.
Also thanks for your kind words :)๐