rea‧son‧a‧bly S2 W3
1 [+ adjective/adverb]
quite or to a satisfactory degree, but not completely:
The car is in reasonably good condition.
He's doing reasonably well at school.
in a way that is right or fair:
He can't reasonably be expected to have known that.
in a sensible way:
Despite her anger, she had behaved very reasonably.