definitely and very obviously po angielsku:

The world's greatest singers and most of its famous musicians have been fat or at least decidedly plump.

She was decidedly mean to her daughter.

In other words, the answer is most decidedly "no".

His style is decidedly more elegant.

These disreputable behaviours – the likes of the fart, hiccup, itch and yawn – are familiar to us all, yet they are also decidedly curious

It was decidedly different in style from his standard, off-the-cuff campaign speeches.

That exam was decidedly more difficult than the last one. This car is decidedly better than the previous one. (Ten samochód jest zdecydowanie lepszy od poprzedniego.)

He acted so decidedly that nobady suspected any future problems.

An agreement is looking decidedly difficult according to the newspapers.

Christi's mysteries are most decidedly interesting.