Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun interim
1 sense of interim                                                      
Sense 1
interim, meantime, meanwhile, lag -- (the time between one event, process, or period and another; "meanwhile the socialists are running the government")
       => time interval, interval -- (a definite length of time marked off by two instants)
Antonyms of adj interim
1 sense of interim                                                      
Sense 1
interim -- (serving during an intermediate interval of time; "an interim agreement")
INDIRECT (VIA impermanent) -> permanent, lasting -- (continuing or enduring without marked change in status or condition or place; "permanent secretary to the president"; "permanent address"; "literature of permanent value")
Similarity of adj interim
1 sense of interim                                                      
Sense 1
interim -- (serving during an intermediate interval of time; "an interim agreement")
       => impermanent (vs. permanent), temporary -- (not permanent; not lasting; "politics is an impermanent factor of life"- James Thurber; "impermanent palm cottages"; "a temperary arrangement"; "temporary housing")

