Antonyms of adj waggish

1 sense of waggish

Sense 1
waggish -- (witty or joking; "Muskrat Castle as the house has been facetiously named by some waggish officer"- James Fenimore Cooper)

INDIRECT (VIA humorous) -> humorless, humourless, unhumorous -- (lacking humor; "it was a humorless wink; a wink of warning"- Truman Capote)

Similarity of adj waggish

1 sense of waggish

Sense 1
waggish -- (witty or joking; "Muskrat Castle as the house has been facetiously named by some waggish officer"- James Fenimore Cooper)
       => humorous (vs. humorless), humourous -- (full of or characterized by humor; "humorous stories"; "humorous cartoons"; "in a humorous vein")