it's all Greek to me

Beyond my understanding

It's all Greek to me expresses that something is completely incomprehensible—as unintelligible as a foreign language one doesn't speak.

The phrase appears when facing impenetrable jargon, technical material, or anything baffling: I tried reading the contract, but it's all Greek to me.

The expression dates to at least Shakespeare's *Julius Caesar*.

Related

over my head · foreign language · lost in translation · unintelligible · nonsense · jargon · puzzling · mystifying · lost · clueless · brain fog · bewildering · cryptic · obscure · mumbo-jumbo · alphabet · hieroglyphics · code

Opposites
comprehensibility

it's all Greek to mecrystal clear

Entirely unambiguous, perfectly understood

plain as day · I get it · clear as a bell · intelligible · comprehensible

familiarity

it's all Greek to mesecond nature

Deeply ingrained tendency

old hat · child's play · bread and butter · home turf · well-versed

Family

Greek, Greece

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G