What is the word most opposite in meaning to "stimulate"?

The word "stimulate" refers to the act of encouraging or promoting activity and growth, often resulting in a heightened state of energy or enthusiasm. The correct answer, which is the word meaning most opposite to "stimulate," is "to arrest." In this context, "to arrest" means to stop or slow down something, which effectively counters the concept of stimulation. When something is arrested, it is held back or prevented from progressing, which contrasts sharply with the idea of stimulating something to increase its activity or development.

The other terms, such as "enhance," "encourage," and "invigorate," all imply a form of support, increase, or improvement. "Enhance" suggests making something better or improving its quality. "Encourage" involves giving support or confidence to someone to do something, and "invigorate" means to give energy or life to something. Each of these terms aligns with the idea of stimulation, rather than opposing it. Thus, "to arrest" stands out as the term that directly opposes the meaning of "stimulate."