Obverse. Opposite, facing.
Ant. Hinder, reverse.
Obvious. Opposing; plain, evident, clear, manifest, apparent, discovered, perceived, open, explicit, patent.
Ant. Remote, obscure, far-fetched, involved, latent.
Occasion, v. Cause, produce, create, induce, originate, furnish, compose, constitute, generate.
Occasionally. Sometimes, casually, rarely.
Ant. Always, constantly, regularly, frequently.
Occult. Secret, concealed, hidden, unknown, invisible, latent, eclipsed, unrevealed, mysterious.
Ant. Developed, plain, exposed, patent, clear, familiar, open.
Occupancy. Possession, occupation, tenury.