1) Greek related 2) Hellenic 3) Hellenistical 4) Of an ancient Greek period 5) Principle 1) Hellenistical 
The main Hellenistic feature was the use of columns: Doric, Ionic and Corinthian, each smaller than its predecessor and with more decoration at the architrave (Parthenon, Temple of Artemis).
Similar to classical Greek but much grander
• (a.) Alt. of Hellenistical
Style of the last of three phases of ancient Greek art (300-100 B.C.), characterized by emotion, drama, and the interaction of sculptural forms with the surrounding space.
The later period of Greek art, 323BCE to 27BCE. 
Term describing the period of Greek civilization from 323 BC (death of Alexander the Great) to 31 BC (Roman victory at the Battle of Actium and the resulting decline of Ptolemaic power in Egypt); term derived from Hellene, the word Greeks used to describe themselves; term coined by the German historian Johann Gustav Droysen to differentiate between...