IPA: /nɪˈɡeɪtəri/
KK: /nɪˈɡeɪtəri/
Describing something that expresses denial or negation; having a negative quality.
The negatory response from the committee surprised everyone.
Not affirming or asserting; expressing denial or negation.
The response was negatory, indicating that the proposal would not be accepted.
Negatory is formed from "negare" (meaning to deny) and the suffix "-ory" (meaning relating to or characterized by). The word "negatory" refers to something that is characterized by denial or negation.
Think of 'denying' something ('negare') and how 'negatory' describes something that relates to denial.