insidious working or spreading in a hidden and usually injurious way
antithesis exact opposite
institution a custom that has been an important feature of some group
institute set up or lay the groundwork for
unstudious not studious
instantaneous occurring with no delay
unsteadiness the quality of not being steady or securely fixed in place
anesthetize administer a numbing or sleep-inducing drug to someone
instance an item of information that is typical of a class or group
institutional relating to an organization founded for a specific purpose
anesthetise administer an anesthetic drug to
constitution the act of forming or establishing something
anastalsis muscular action of the alimentary tract in a direction opposite to peristalsis
constituency the body of voters who elect a representative for their area
institutionalise cause to be admitted; of persons to an institution
unostentatious not ostentatious
anastomosis a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous
insidiousness subtle and cumulative harmfulness (especially of a disease)
incidence the relative frequency of occurrence of something
anesthetist a specialist who administers an anesthetic to a patient before he is treated