The difference between Orthogonal and Uncorrelated

When used as adjectives, orthogonal means of two objects, at right angles, whereas uncorrelated means not correlated.

Orthogonal is also noun with the meaning: an orthogonal line.

check bellow for the other definitions of Orthogonal and Uncorrelated

Orthogonal as an adjective (geometry):

Of two objects, at right angles; perpendicular to each other.

Examples:

"A chord and the radius that bisects it are orthogonal."
Orthogonal as an adjective (mathematics):

Of a pair of vectors: having a zero inner product; perpendicular. Of a square matrix: such that its transpose is equal to its inverse. Of a linear transformation: preserving its angles. Of grid graphs, board games and polyominoes: vertical or horizontal but not diagonal.

Examples:

"The normal vector and tangent vector at a given point are orthogonal."
Orthogonal as an adjective (statistics):

Statistically independent, with reference to variates.
Orthogonal as an adjective (software engineering):

Of two or more aspects of a problem, able to be treated separately.

Examples:

"The content of the message should be orthogonal to the means of its delivery."
Orthogonal as an adjective:

Of two or more problems or subjects, independent of or irrelevant to each other.

Uncorrelated as an adjective:

Not correlated
Uncorrelated as an adjective (statistics):

Having a covariance of zero