O - IMPRESSIVE PHRASES - FIFTEEN THOUSAND USEFUL PHRASES

obdurate, unfeeling, callous, and obstinate

obedient, respectful, dutiful, and submissive

object, propose, protest, and decline

obliging, kind, helpful, and courteous

obscure, shadowy, intricate, and mysterious

obsequious, cringing, fawning, and servile [obsequious = fawning.]

observations, sentiments, ideas, and theories

obstinacy, pertinacity, stubbornness, and inflexibility [pertinacity =
persistent]

offensive, disagreeable, distasteful, and obnoxious

officious, impertinent, insolent, and meddlesome