Antonyms of adj staid

1 sense of staid

Sense 1
sedate, staid -- (characterized by dignity and propriety)

INDIRECT (VIA decorous) -> indecorous, indelicate -- (lacking propriety and good taste in manners and conduct; "indecorous behavior")

Similarity of adj staid

1 sense of staid

Sense 1
sedate, staid -- (characterized by dignity and propriety)
       => decorous (vs. indecorous) -- (characterized by propriety and dignity and good taste in manners and conduct; "the tete-a-tete was decorous in the extreme")