Expedite and unblock answer different questions about a slow-moving situation.
"Expedite" means speeding up something that was already moving, just too slowly. "Unblock" means restarting something that was fully stopped. Using "unblock" when something was only slow, or "expedite" when something was genuinely stuck, is a common precision error.
The test: was it moving at all?
The test is whether work was moving at all before the action. If it was progressing but too slowly, the accurate word is "expedite" -- nothing needed to be restarted, just accelerated. If it had actually stopped, "unblock" is correct, and "expedite" would understate what was wrong.
"The review was already underway but taking three weeks, so we asked legal to expedite it -- nothing was stuck, just slow."
"The PR couldn't merge at all until the security exception was granted, so getting that exception unblocked it -- expediting wouldn't have fixed a full stop."
The first situation had no genuine obstacle -- it just needed prioritization. The second had a hard stop that no amount of prioritization alone could have moved past; it needed the actual exception.
Why calling a slow process "blocked" is a real mistake, not just a style choice
Mislabeling matters because it points people at the wrong fix. Calling a slow-but-moving procurement process "blocked" when it was really just under-resourced overstates the problem and can send a team chasing an obstacle that doesn't exist, instead of simply asking for it to be prioritized. Conversely, describing a genuinely stuck process as merely needing to be "expedited" understates it and can lead to nudging on a timeline that was never going to move without the actual missing piece.
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Start learning for free →Ask before you choose the word
Before reaching for either word, ask: had work actually stopped, or was it simply moving more slowly than desired? A slow-but-moving process needs expediting, not unblocking. A genuinely stuck one needs unblocking, and no amount of expediting pressure will substitute for removing the real obstacle.
Two different requests, two different fixes
The practical stakes of this distinction show up most clearly when you're the one asking for help. Asking someone to "expedite" a review means asking them to reprioritize -- move your item up the queue, spend the time on it sooner. Asking someone to "unblock" a review means asking them to supply something specific that's missing before the review can even proceed at all. Sending the wrong request wastes a round trip: asking to expedite something that's genuinely stuck gets you a faster non-answer, and asking to unblock something that's merely slow can confuse a reviewer who has no missing input to provide.
Getting the diagnosis right before making the ask is worth the extra ten seconds of thought. A quick gut-check -- "is anyone waiting on something specific from someone else, or is this just further back in the queue than I'd like?" -- usually settles which word, and which request, actually fits the situation.
Practice scenarios
Practice using unblock in situations like:
- distinguishing a slow-but-moving process from a genuinely stopped one
- choosing "expedite" instead of "unblock" when nothing was actually stuck
- explaining why a process needs the actual obstacle removed, not just prioritization
Useful practice phrases:
- "Nothing was stuck, just slow -- we asked legal to expedite the review."
- "The PR couldn't merge at all until the exception was granted; that's what unblocked it."
- "This isn't blocked, it's just under-resourced -- let's ask for it to be expedited."
Slow and stuck call for different fixes, and different words.
Ask whether anything was actually stopped before choosing between "expedite" and "unblock" -- the wrong pick points people at the wrong solution.
Lyra Practice helps advanced non-native English professionals learn the nuance of high-value workplace expressions and practice using them in realistic scenarios, so their English sounds natural, precise, and senior at work. Try Lyra Practice.