Answer: tentative

AnswerCrossword Clue
TENTATIVEHesitant
TENTATIVEOnly penciled in
TENTATIVEUp in the air
TENTATIVEEmpirical.
TENTATIVEExperimental.
TENTATIVEProvisional.
TENTATIVEProvisional
TENTATIVEUncertain
TENTATIVEFull of hedges
TENTATIVENot final
tentativeNot certain or fixed; provisional
tentativeDone without confidence; hesitant
tentativecautious / something done as an experiment or trial