Misleading in appearance; seems plausible but is actually wrong.

भ्रामक, आभासी

English Usage: His argument was specious, convincing at first glance but fundamentally flawed.

Hindi Usage: उसकी दलील भ्रामक थी, पहली नज़र में विश्वास दिलाने वाली लेकिन मूल रूप से दोषपूर्ण।