a reason given for an action in order to hide the real intention;excuse
"under the guise of friendship he betrayed them"
She had written the letter herself as a pretext to gain admittance.
出自： W. Trevor
The Romantics invented invalidism as a pretext for leisure.
出自： S. Sontag
Pretexting an appointment..he left.
出自： W. S. Maugham