Antonyms of adj spiffing

1 sense of spiffing

Sense 1
spiffing -- (excellent or splendid; "that's a perfectly spiffing idea")

INDIRECT (VIA superior) -> inferior -- (of low or inferior quality)

Similarity of adj spiffing

1 sense of spiffing

Sense 1
spiffing -- (excellent or splendid; "that's a perfectly spiffing idea")
       => superior (vs. inferior) -- (of high or superior quality or performance; "superior wisdom derived from experience"; "superior math students")