(idiomatic) A thing or person which fails to measure up to its description or advanced promotion.

The earliest of the Martian geologic epochs, approximately from 3,800 million years ago to 3,500 million years ago, marked by many large impact craters and followed by the Hesperian epoch.

(litotes) Said of a person who is no longer particularly young.

(idiomatic, originally US, colloquial) Used to indicate that one is almost correct or has almost succeeded, but not quite.

Synonym of all hat and no cattle

Alternative spelling of no-brainer

(US, idiomatic) Full of big talk but lacking action, power, or substance; pretentious.

(often hyphenated) Characterized by an absence of conditions or obligations.

(informal) An easy or obvious conclusion, decision, solution, task, etc.; something requiring little or no thought.

(idiomatic) Without conditions or obligations; without a catch.