Question

what does the prefix ob - mean in the word obstructive? her constant lateness was obstructive to the teams goal of winning the state basketball championship. blocking something removal of something reversal of action opposing action

Explanation:

The word "obstructive" means preventing or hindering something. The prefix "ob - " in "obstructive" indicates blocking. In the sentence, her lateness blocked the team's goal of winning the championship.

Answer:

blocking something