gigantean
adjective
gi·gan·te·an
¦jīˌgan‧¦tēən,
-gən‧-;
(ˈ)jī¦gantē-,
-jə̇ˈg-
: gigantic
a gigantean granite altar 
Time
Time
Word History
Etymology
Latin giganteus of the giants (from gigant-, gigas giant, from Greek) + English -an