Name synonyms and antonyms in the poem "The Solitary Reaper."

In the first two lines of the poem, Wordsworth calls the Highland Lass both "single" and "solitary," which reinforces how alone the woman is as she reaps and binds. Wordsworth also uses the synonyms "motionless" and "still" to describe the narrator as he listens to the reaper singing her solitary song. Such repetition, in the same line no less, emphasizes how spellbound the narrator is made by the singing. It is as if he had been turned into a statue. Her song itself is called both "plaintive" and "melancholy," both words carrying the connotation of sadness and lament.

I don't find any antonyms per se, but there is a juxtaposition of opposites in stanza three. Here, the poet speculates on what the subject of the reaper's song might be: she might be singing about the olden days and faraway places or she might be warbling a tune about present sorrows: "familiar matter of today."