Adjectives that start with O to Describe a Person

Dutifully complying with the commands or instructions of those in authority.

Belonging to immediate experience of actual things or events; Emphasizing or expressing things as perceived without distortion of personal feelings or interpretation; Serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes; Undistorted by emotion or personal bias; based on observable phenomena.

Causing disapproval or protest.

(of individuals) adhering strictly to laws and rules and customs; Quick to notice; showing quick and keen perception; Paying close attention especially to details.

Characterized by or constituting an obsession.

Not used up; Of the remaining member of a pair; Beyond or deviating from the usual or expected; An indefinite quantity more than that specified; Not easily explained; Not divisible by two.

Out of fashion.

Ready to entertain new ideas.

Obstinate in your opinions.

Expecting the best; Expecting the best in this best of all possible worlds.

Being a member of or formed into a labor union.

At ease in talking to others; Retiring from a position or office; Leaving a place or a position.

Characterized by directness in manner or speech; without subtlety or evasion; Given to expressing yourself freely or insistently.