Antonyms of adj semi-upright

1 sense of semi-upright

Sense 1
semi-upright -- (of animals that are partly erect)

INDIRECT (VIA erect) -> unerect -- (not upright in position or posture)

Similarity of adj semi-upright

1 sense of semi-upright

Sense 1
semi-upright -- (of animals that are partly erect)
       => erect (vs. unerect), vertical, upright -- (upright in position or posture; "an erect stature"; "erect flower stalks"; "for a dog, an erect tail indicates aggression"; "a column still vertical amid the ruins"; "he sat bolt upright")