Whittled away is a phrase that means to gradually reduce or diminish something. The antonym for whittled away would be to accumulate or increase. Other possible antonyms for this phrase might include to enhance, enrich, or amplify, as well as to build up, grow, or expand. These words convey the opposite meaning of whittling away something, suggesting an augmenting or invigorating effect instead. When you want to counteract the negative impact of whittling away, you can use these antonyms to emphasize the importance of preserving, conserving, and strengthening what you have. By choosing the right antonyms for whittled away, you can express your desire to build up and sustain your resources, relationships, and abilities.