This is the 15065th most frequent German word.
sonderlich
"Not particularly" or "especially; remarkably."
Here, 'sonderlich' emphasizes a moderate degree of excitement, implying the lecture was not very exciting.
Ich fand den Vortrag nicht sonderlich spannend.
I did not find the lecture particularly exciting.
In this case, 'sonderlich' highlights that the quality of the movie is subpar without being overly critical.
Dieser Film ist wirklich nicht sonderlich gut gemacht.
This movie is really not particularly well made.
The usage of 'sonderlich' here suggests that the interest shown towards art is not remarkable or noteworthy.