pantywaist I. \ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷\noun Etymology:panty + waist 1.: a child's garment consisting of short pants buttoned to a waist 2.: sissy II. adjective : childish, infantile : sissified < the round robin of abuse which enlivened belles lettres before they went pantywaist in the twentieth century — Richard Hanser >