Smelt out means to detect or discover something by means of investigation, intuition or deduction. The antonyms for smelt out are to overlook, miss, or ignore. These antonyms imply a failure to notice or recognize something that is present or significant. Another antonym could be to cover up, conceal, or hide, suggesting a deliberate attempt to keep something hidden or secret from others. In contrast, to reveal, uncover, or disclose would represent opposite meanings of smelt out, indicating the exposure or discovery of something previously hidden or unknown. In conclusion, understanding antonyms for smelt out can enhance comprehension and communication in daily life.