horizontal

I

(New American Roget's College Thesaurus)

Parallel to the earth's surface

Nouns

1. horizontality, horizontalness, flatness; level, plane; stratum (see layer); horizon, azimuth; recumbency, lying down, reclination, proneness, supination, prostration; smoothness.

2. plane surface, fascia, landscape; floor, platform, [billiard] table; terrace, esplanade, parterre, tableland, plain, plateau, prairie, ledge; plate, platter; tablet, slab; sea level.

Verbs

1. be horizontal, lie, recline, couch; lie down or flat; sprawl, loll.

2. lay [down or out]; level, flatten, smooth, even, equalize, align; steam-roll[er], iron, press; prostrate, knock down, floor, fell, bowl over.

Adjectives — horizontal, level, even, plane, flush; flat [as a pancake or flounder], on an even keel; alluvial; calm; smooth as glass; recumbent, lying, prone, supine, couchant, prostrate.

Adverbs — horizontally, on a level, on one's back; on all fours.

Antonyms, see vertical.

II

(Roget's IV) modif.

1. [Level]

Syn. plane, aligned, parallel; see flat 1 , level 3 , straight 1 .

2. [Even]

Syn. flush, uniform, regular; see flat 1 , smooth 1 .

III

(Roget's 3 Superthesaurus) a.

flat, level, flush, plane, straight, supine, prone, recumbent.

ANT.: vertical, upright

IV

(Roget's Thesaurus II) adjective Lying down: decumbent, flat, procumbent, prone, prostrate, recumbent. See HORIZONTAL.