dreadful 1763 ## d@chal (Aramaic) {deh-khal'}; corresponding to 2119; to slink, i.e. (by implication) to fear, or (causatively) be formidable: -- make afraid, {dreadful}, fear, terrible.
dreadful 3374 ## yir&ah {yir-aw'}; feminine of 3373; fear (also used as infinitive); morally, reverence: -- X {dreadful}, X exceedingly, fear(-fulness).