"deceptive" in the adjective sense
1. deceptive, delusory
causing one to believe what is not true or fail to believe what is true
"deceptive calm"
"a delusory pleasure"
2. deceptive, misleading
designed to deceive or mislead either deliberately or inadvertently
"the deceptive calm in the eye of the storm"
"deliberately deceptive packaging"
"a misleading similarity"
"statistics can be presented in ways that are misleading"
Source: WordNet® (An amazing lexical database of English)
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