"Adequately" doesn't mean ponderously long... Okay, but it also doesn't actually mean *anything.* How much is adequate? Who decides? ... You, presumably, since you don't want the players asking questions to fill in the gaps of your description.I think the DM is obligated to adequately describe the environment. ("Adequately" here does not mean "ponderously long.") I do not see this as "beating around the bush." It is simply the DM's role, a full third of the basic conversation of the game. You will know what Beat Horsedeath is trying to accomplish by way of my description.
I've definitely seen players having question paralysis, but far more often in my experience questions are simply an attempt to get all of the critical information.
If someone tries to "act" and the action isn't appropriate... What happens? Do you have their action fail and they suffer the (presumably often high stakes) consequences? Do you tell them their attempted action makes no sense?
If you tell them their action makes no sense you've simply reskinned asking questions as acting. You've trained your players to couch their questions as actions, but it's cosmetic. You've done nothing interestingly different from DMs who allow table questions.
If you penalize them for failure due to illogical actions attempted due to insufficient information, though, that's even worse. This is a common trait of some of us grognards that I've seen; a tendency to "if you say it you do it" and "no time to think, *what do you do?*"
That stuff is cool... If there is sufficient information. But nobody is a perfect narrator. You're going to screw up. Stuff you think is implied won't always be successfully conveyed. Under your system, the players pay the price... whether the fault is theirs for not paying attention, or yours for failing to illustrate the whole scene.