Display screen or portion thereof with transitional graphical user interface

Description

FIG. 1 is a front view of a display screen or portion thereof with transitional graphical user interface showing a first image in the sequence in accordance with the present design;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof;

FIG. 4 is a fourth image thereof;

FIG. 5 is a fifth image thereof;

FIG. 6 is a sixth image thereof;

FIG. 7 is a seventh image thereof;

FIG. 8 is an eighth image thereof; and,

FIG. 9 is a ninth image thereof.

The appearance of the graphical user interface of the display screen or portion thereof sequentially transitions between the images shown in FIGS. 1-9. The process or period in which the graphical user interface transitions forms no part of the claimed design. Additionally, the outermost broken lines shown in the drawings illustrate a display screen or portion thereof. All other broken lines illustrate portions of the graphical user interface None of the broken lines form part of the claimed design.

Claims

The ornamental design for a display screen or portion thereof with transitional graphical user interface, as shown and described.