One-word synonym (instead of compound adjectives) for "time-consuming" and "less time-consuming"
More Time-Consuming
I can perhaps offer a few alternatives, in this order:
- Protracted = drawn out considerably, particularly in time.
- Exhaustive = comprehensive or thorough, but draining.
- Laborious ~ (As above - @Preetie Sekhon)
Less Time-Consuming
Again, in this order:
- Transient = brief, not lasting very long at all.
- Ephemeral = lasting a very short time, very brief, transitory.
- Brief = very fast, short-lived.
Caution
Be careful with ephemeral in particular, because almost no one typically knows what that means. It is a very uncommon word.
You could describe a time-consuming task as involved or potentially engrossing for something that might be involuntarily time-consuming.
For something less time-consuming, I would think easy, quick, or simple might work.
More time consuming :
laborious
requiring considerable time and effort.
Cannot think of anything for requiring less time
effortless is something that does not require much energy or inputs.
Speedy done or occurring quickly , may also work, depending on the context.
tedious (M-W):
boring and too slow or long
quick: this is obvious but here's a definition for completeness sake (M-W):
done or happening in a short amount of time
Your examples:
Inasmuch as it'd be tedious to Google each individually,
what are some quick ways to find bestselling French nonfiction (either originally written in or translated into French) which are available as audiobooks?