Adjectives that start with o
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Objective
- undistorted by emotion or personal bias; based on observable phenomena
- serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes
- emphasizing or expressing things as perceived without distortion of personal feelings, insertion of fictional matter, or interpretation
- belonging to immediate experience of actual things or events
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Observant
- paying close attention especially to details
- quick to notice; showing quick and keen perception
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Official
- having official authority or sanction
- of or relating to an office
- verified officially
- conforming to set usage, procedure, or discipline
- (of a church) given official status as a national or state institution
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Opportune
- suitable or at a time that is suitable or advantageous especially for a particular purpose
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Optimistic
- expecting the best in this best of all possible worlds
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Opulent
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Oafish
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Obedient
- dutifully complying with the commands or instructions of those in authority; the refractory remain unburdened"- Edmund Burke
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Objectionable
- causing disapproval or protest
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Obnoxious
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Obscene
- designed to incite to indecency or lust
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Observable
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Obsessive
- a person who has obsessions
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Obstinate
- persist stubbornly
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Oceanic
- relating to or occurring or living in or frequenting the open ocean
- resembling the ocean in apparent limitlessness in extent or degree
- constituting or living in the open sea
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Odious
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Offhand
- without previous thought or preparation
- in a casually inconsiderate manner
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Officious
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Offshore
- away from shore; away from land
- at some distance from the shore
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Ominous
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Omniscient
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Oncoming
- moving toward one
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Onerous
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Opalescent
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Operatic
- of or relating to or characteristic of opera
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Operational
- pertaining to a process or series of actions for achieving a result
- (military) of or intended for or involved in military operations
- being in effect or operation
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Oppressive
- weighing heavily on the senses or spirit
- marked by unjust severity or arbitrary behavior