empiric
empirical
conjectural
cut-and-try
determined
developmental
experiential
exploratory
heuristic
hit-or-miss
hypothetical
pilot
preliminary
preparatory
probationary
probative
probatory
proving
provisional
resolute
speculative
temporary
tentative
test
testing
theoretical
trial
trial-and-error
trying
venturesome
verificatory
willing
biological
commercial
critical
internal
mathematical
scientific
Occidental
Oriental
accidental
coincidental
compartmental
continental
dental
departmental
detrimental
elemental
environmental
fennel
fundamental
gentle
governmental
incidental
incremental
instrumental
intercontinental
intergovernmental
judgemental
judgmental
kennel
lentil
mental
monumental
nongovernmental
occidental
oriental
ornamental
pancontinental
parental
phenol
regimental
rental
sentimental
supplemental
temperamental
transcendental
transcontinental
unsentimental