Provisional and tentative can both describe "a plan that might change." The difference that matters most here is register, not meaning.
"Provisional" is a formal, officially recorded temporary status, held through a real process with a defined path to confirmation. "Tentative" is an informal, low-commitment idea that either party can change easily, with no formal process behind it.
Provisional: formal, procedural, on the record
Provisional fits contracts, HR letters, and official results -- anywhere a real process is behind the status.
"The board granted provisional approval for the budget, pending final ratification next month."
This went through an actual process. It's on the record, and there's a defined next step.
Tentative: informal, easily changed
Tentative fits a casual plan that either side can adjust without any process attached.
Want to learn "Provisional" in depth?
Lyra Practice teaches advanced non-native professionals the nuance of high-value expressions like this one, then has you practice using them in realistic work scenarios.
Start learning for free →"Let's pencil in a tentative time for Thursday -- we can always move it if something comes up."
No process, no formal record -- just a loose placeholder both people understand might shift.
Same underlying idea, wrong register
Using the wrong one in the wrong setting either sounds stiff or understates a real status.
Too stiff for a casual plan: "Our provisional plan is to grab lunch at noon." Understates a real process: "We have a tentative agreement" (when what actually happened was a formal, recorded provisional approval pending ratification).
The rule
Ask whether the "might change" status is backed by a real, formal process with a defined confirmation step, or whether it's just an informal idea either party can adjust freely. Contracts, HR letters, and official results call for "provisional." A casual scheduling idea calls for "tentative" -- even when both describe a plan that might not stick.
Practice scenarios
Practice choosing between provisional and tentative in situations like:
- describing a formally recorded status awaiting ratification
- suggesting a casual meeting time that either side can move
- matching the register of "might change" language to the setting
Useful practice phrases:
- "The board granted provisional approval, pending ratification."
- "Let's pencil in a tentative time -- we can move it if needed."
- "This is more than tentative -- it's a provisional agreement, on the record."
Provisional is formal and on the record. Tentative is informal and easily moved. Both describe uncertainty -- the register decides which one fits.
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.