The antonyms for the phrase "smashing and grab" can vary depending on the context. In a criminal connotation, antonyms might include honor, ethics, and respect for the law. On the other hand, if used in a positive light, antonyms could include gentleness, caution, and mindfulness. In a generic sense, antonyms for "smashing and grab" could be calm and calculated, slow and steady, or law-abiding and honest. The phrase typically implies a lack of consideration for possible consequences or the rights of others, so antonyms would involve characteristics associated with ethical behavior and responsible decision-making.