Antonym of to be familiar with

Antonym of effective Antonym of good Antonym of complete Antonym of familiar Antonym of great Antonym of successful Antonym of smooth Antonym of practical Antonym of influential Antonym of clever Antonym of important Antonym of powerful Antonym of vigorous Antonym of conscious Antonym of regular Antonym of capable Antonym of qualified Antonym of responsible Antonym of excellent Antonym of persuasive Antonym of professional Antonym of valid Antonym of used Antonym of able Antonym of knowledgeable Antonym of neat Antonym of proficient Antonym of prompt Antonym of strong Antonym of competent Antonym of methodical Antonym of performant Antonym of aware Antonym of exotic Antonym of functional Antonym of happy Antonym of cognizant Antonym of businesslike Antonym of slick Antonym of operative Antonym of versed Antonym of efficacious Antonym of systematic Antonym of live Antonym of economical Antonym of pragmatic Antonym of effectual Antonym of dexterous Antonym of serviceable Antonym of infallible Antonym of self sufficient Antonym of accustomed Antonym of virtuous Antonym of privy Antonym of addicted Antonym of conversant Antonym of expeditious Antonym of informed Antonym of utilitarian Antonym of abreast Antonym of imported Antonym of streamlined Antonym of crisp Antonym of forcible Antonym of inured to Antonym of moved Antonym of well organized Antonym of timesaving Antonym of Scotch Antonym of conditioned Antonym of no nonsense Antonym of ordered Antonym of well ordered Antonym of wont