" informedly "

1: based on sound reasoning or information;

  * e.g., " ... the expert's informed opinion persuaded many fence-sitters to get a flu shot "

•  Synonyms : 

•  commonsense,

•  commonsensible,

•  commonsensical,

•  firm,

•  good,

•  hard,

•  just,

•  justified,

•  levelheaded,

•  logical,

•  rational,

•  reasonable,

•  reasoned,

•  sensible,

•  sober,

•  solid,

•  valid,

•  well-founded

•  Antonyms : 

•  groundless,

•  illogical,

•  invalid,

•  irrational,

•  nonrational,

•  nonsensical,

•  nonvalid,

•  unfounded,

•  uninformed,

•  unjustified,

•  unreasonable,

•  unreasoned,

•  unsound

2: having information especially as a result of study or experience;

  * e.g., " ... people who are informed about nutrition have some serious misgivings about this new diet "

•  Synonyms : 

•  abreast,

•  acquainted,

•  au courant,

•  conversant,

•  familiar,

•  knowledgeable,

•  up,

•  up-to-date,

•  versed,

•  well-informed

•  Antonyms : 

•  ignorant,

•  unacquainted,

•  unfamiliar,

•  uninformed,

•  unknowledgeable