Initial and Preliminary

Initial adjective - Coming before all others in time or order.

Preliminary is a synonym for initial in first topic. In some cases you can use "Preliminary" instead the word "Initial" as an adjective or a noun.

Nearby Words: initiate, initiation, initialing, initialed, initialize

Preliminary adjective - Coming before the main part or item usually to introduce or prepare for what follows.

Initial is a synonym for preliminary in first topic. You can use "Initial" instead the word "Preliminary" as an adjective or a noun, if it concerns topics such as preparatory.