Bible Theasaurus

Arduous (1 instance)
Concentrated (1 instance)
Difficult (74 instances)
Firmly (91 instances)
Heavily (30 instances)
Impenitent (3 instances)
Insensible (1 instance)
Intemperate (1 instance)
Laborious (14 instances)
Punishing (22 instances)
Severe (97 instances)
Severely (92 instances)
Strong (864 instances)
Tough (2 instances)

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain

International Standard Version Copyright © 1996-2008 by the ISV Foundation.