The antonyms for the word "dumb acts" would be actions, deeds, or decisions that are smart, wise, or intelligent. People who exhibit such characteristics are savvy, astute or perceptive. They are able to make informed, rational choices and are often hailed as clever, bright or sharp. Examples of the opposite of dumb acts could include innovative or ingenious ideas, discerning or deliberate decisions, and insightful or intuitive observations. In contrast to dumb acts, these actions may take longer to plan and execute, but they are typically more successful and beneficial in the long run.