TYRANNICAL
authoritarian, autocratic, dictatorial, despotic, tyrannic, tyrannical
(adjective) characteristic of an absolute ruler or absolute rule; having absolute sovereignty; “an authoritarian regime”; “autocratic government”; “despotic rulers”; “a dictatorial rule that lasted for the duration of the war”; “a tyrannical government”
oppressive, tyrannical, tyrannous
(adjective) marked by unjust severity or arbitrary behavior; “the oppressive government”; “oppressive laws”; “a tyrannical parent”; “tyrannous disregard of human rights”
Source: WordNet® 3.1
Adjective
tyrannical (comparative more tyrannical, superlative most tyrannical)
(not comparable) Of, or relating to tyranny or a tyrant.
(comparable) Despotic, oppressive or authoritarian.
Synonyms
• See also bossy
Source: Wiktionary
Ty*ran"nic, Ty*ran"nic*al, a. Etym: [L. tyrannicus, Gr. tyrannique.
See Tyrant.]
Definition: Of or pertaining to a tyrant; suiting a tyrant; unjustly severe
in government; absolute; imperious; despotic; cruel; arbitrary; as, a
tyrannical prince; a tyrannical master; tyrannical government. "A
power tyrannical." Shak.
Our sects a more tyrannic power assume. Roscommon.
The oppressor ruled tyrannic where he durst. Pope.
– Ty*ran"nic*al*ly, adv.
– Ty*ran"nic*al*ness, .
Source: Webster’s Unabridged Dictionary 1913 Edition