discreet, discrete Definition

discreet
adj

1. Careful to prevent suspicion or embarrassment, especially by keeping a secret.

Thesaurus: cautious, prudent, sensible, wary, careful; diplomatic, tactful, circumspect, politic, guarded, reserved; Antonym: careless; tactless.
2. Avoiding notice; inconspicuous.

Derivative: discreetly
adverb

Derivative: discreetness
noun

See also discretion.

Etymology: 14c: from Latin discretus.

Info:

These words are sometimes confused with each other.