illative
1. [ adjective ] (logic) resembling or dependent on or arrived at by inference
Synonyms: inferential
Examples:

"an illative conclusion" "inferential reasoning"

Related terms: deductive
2. [ adjective ] relating to or having the nature of illation or inference
Synonyms: inferential
Examples:

"the illative faculty of the mind"

Related terms: inference inference
3. [ adjective ] (grammar) expressing or preceding an inference
Examples:

"`therefore' is an illative word"

Related terms: grammar deductive