The antonyms for the word "assistive" are words that indicate the opposite of help, assistance, or support. Some of the common antonyms for "assistive" include "hinder," "obstruct," "frustrate," "hamper," or "impede." These words, in contrast to "assistive" which implies something that makes a task or activity easier, suggest a difficulty or complication in performing a task. For example, an obstructive device might make it harder for a person with a disability to move around their home. Thus, it is important to understand the antonyms for assistive to ensure that the right support is provided to people with disabilities without hindering them.