The word un-accented signifies the absence of emphasis or stress on a particular syllable, word, or phrase. Its antonyms include words like emphasized, accented, emphasized, stressed, spoken, and pronounced. Whenever a syllable or a word receives more attention than others in the same sentence, it's considered accented. An accented word is usually emphasized either by a higher volume or a change in pitch, and it's commonly used to add emphasis or convey meaning. For instance, in the sentence, "I cannot believe you did that," the word "cannot" is accented, which emphasizes the shock and disbelief of the speaker.