This is the 4714th most frequent Polish word.
niedostatecznie
"Insufficiently."
Here, 'niedostateczną' refers to a specific type of academic grade, describing its insufficiency or poor quality.
Otrzymał ocenę niedostateczną z matematyki.
He received an insufficient grade in mathematics.
In this sentence, 'niedostatecznie' functions as an adverb describing the inadequate manner of preparation.
Niedostatecznie przygotowałem się do egzaminu.
I prepared insufficiently for the exam.
Here, 'niedostatecznie' is used as an adverb to qualify the manner in which the projects were executed, emphasizing their need for improvement or incompleteness.