The antonyms for the word "under-score" are "overlook," "ignore," and "disregard." These words describe actions that are opposite to underlining, highlighting, or emphasizing something. When you overlook something, you fail to notice or acknowledge its importance, while to ignore something means you deliberately refuse to acknowledge its existence or significance. Similarly, the word "disregard" implies a lack of attention, respect, or concern for something. In contrast, under-scoring something implies that it is a critical point or emphasis that needs attention. Knowing the antonyms of a word can help you understand its meaning and use it effectively in writing and conversation.