QUACK Antonyms

• endorsed authoritatively as having met certain requirements

• fit to be certified as insane (and treated accordingly)

• holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill

• capable of being believed

• (a common but incorrect usage where `credulous' would be appropriate) credulous

• appearing to merit belief or acceptance

• not fake or counterfeit

• not pretended; sincerely felt or expressed

• being or reflecting the essential or genuine character of something

• of marriages and offspring; recognized as lawful

• based on known statements or events or conditions

• in accordance with recognized or accepted standards or principles

• authorized, sanctioned by, or in accordance with law

• make legal

• show or affirm to be just and legitimate

• make (an illegitimate child) legitimate; declare the legitimacy of (someone)

• given official approval to act

• engaged in a profession or engaging in as a profession or means of livelihood

• of or relating to or suitable as a profession

• characteristic of or befitting a profession or one engaged in a profession

• of or relating to a profession

• a person engaged in one of the learned professions

• an athlete who plays for pay

• an authority qualified to teach apprentices

• engaged in by members of a profession

• meeting the proper standards and requirements and training for an office or position or task

• limited or restricted; not absolute

• holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill

• restricted in meaning; (as e.g. `man' in `a tall man')

• contingent on something else

• worthy of reliance or trust

• worthy of being depended on

• conforming to fact and therefore worthy of belief

• having a good reputation