Synonyms of preliminary

1 Syllable

first, trial, prior, test, prep

2 Syllables

runup, nascent, walkup, sketchier, primal, simplex, finals, basic, pilot, walk-up, run-up, readying, sketchy

3 Syllables

foreword, preparing, preexistent, preface, qualifying, preceding, opening, prevenient, inchoate, prelude, primary, prodromal, prefacing, prefaced

4 Syllables

elemental, trial-and-error, antecedent, fundamental, requirement, rudimental, aforeknown, forerunning, precursory, prefatory, inductive, unperfected

5 Syllables

elementary, exploratory, experimental, above-named, preparatory, initiatory

6 Syllables

aforementioned, above-mentioned, abovementioned