Lexical Definition

‎אַכְזָר‎ ʼakzâr (ak-zawr') cruel H:A
from an unused root (apparently meaning to act harshly)

cruel, fierce.

1) cruel, fierce

See Greek: ἀνελεήμων

Usage: 4 forms in 4 verses
Form Translated As     In Verse(s)
לְאַכְזָ֣ר into cruel Job.30.21
לְאַכְזָ֔ר cruel Lam.4.3
אַכְזָֽר cruel Deut.32.33
אַ֭כְזָר fierce Job.41.10

Brown-Driver-Briggs

‎אַכְזָר‎ adjective cruel, fierce, of poison (‎ראֹשׁ‎) Deut 32:33 elsewhere of men, fierce Job 41:2* as substantive = a cruel one Job 30:21 (of God), Lam 4:3.

Brown-Driver-Briggs References

Book Refs
Deuteronomy 32:33
Job 30:21 · 41:2*
Lamentations 4:3