conditional
cut-and-try
empirical
experimental
heuristic
hit-or-miss
on probation
pilot
probational
probative
probatory
proving
provisional
tentative
test
testing
trial
trial-and-error
trying
verificatory
average-looking
call boy
calorific
contract
custodial
d
fresh-faced
helmetless
long-dreaded
no-bid
postdoctoral
primary-school
rabbinal
seven-year
slave-labor
three-year
unmeant
white-shirted
year-earlier
deflationary
disinflationary
inflationary
noninflationary
stationary
stationery