Difference between Dubiously and Questionably

DUBIOUSLY vs QUESTIONABLY: ADVERB

Obscurely, Smugly, Idiotically, Stupidly, Amusingly, Clumsily, Preposterously, Ludicrously, Cynically, Distastefully, Suspiciously, Curiously, Bizarrely, Doubtfully, Questionably

Uncharitably, Nefariously, Ironically, Duly, Unconvincingly, Strangely, Absurdly, Foolishly, Idiotically, Stupidly, Amusingly, Ludicrously, Distastefully, Bizarrely, Doubtfully

The Cop removed his helmet and scratched his head dubiously.
Fairly or dubiously acquired degrees makes no difference to people with bushes embedded in their heads.
Kapai also said that Zanaco acquired goalkeeper Toaster Nsabata and defender Chongo Chirwa dubiously.
"Well, I'll try to have a look at it," he says dubiously.
Holloman has good night schools, she regarded her reflection in the mirror dubiously.
Clete returns from Latin America, mixed up rather dubiously with the Mafia geeks.
DEALER STEREOTYPICALLY HAVING DUBIOUSLY MADE ASSURANCES TO TAKE IN NEW DRIVER?
How to turn off a dubiously convenient, definitely eerie feature.
Englebart restocks her dissident acropetally, she tongs it dubiously.
Most cats, for example, dubiously sniff at sweets.

Aliso was well known for its powerful shorebreak and its questionably toxic creek.
But there are also principled objections, based on the connection of organized crime to questionably illicit markets.
Questionably useful for tanking bosses since tanks ideally want to be defense capped.
PRIOR UNRELEASED OIL AND GAS LEASES of record or are questionably released.
But in the watering down, someone somewhere made some seriously questionably decisions.
Questionably crippled by clicking on what makes and a must.
I am not greater by questionably the claims in court.
The man stared at him questionably than laughed loudly.
I get questionably sick from the FLAGYL will work.
This option is questionably useful in my opinion.