| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | exploratory |
| Synonyms: | beginning, developmental, empirical, experiential, first stage, laboratory, momentary, on approval, pilot, preliminary, preparatory, primary, probationary, provisional, speculative, temporary, tentative, test, trial, trial-and-error, unconcluded, under probation, unproved |
| Antonyms: | proven, tested, tried |
| Main Entry: | beta |
| Part of Speech: | adjective |
| Definition: | being tested |
| Synonyms: | dubious, experimental, flaky, mostly working, new, pre-release, suspect, testing, unready |
| Main Entry: | empirical/empiric |
| Part of Speech: | adjective |
| Definition: | practical; based on experience |
| Synonyms: | experient, experiential, experimental, factual, observational, observed, pragmatic, provisional |
| Antonyms: | hypothetical, impractical, speculative, theoretical, unobserved |
| Main Entry: | pioneer |
| Part of Speech: | adjective |
| Definition: | early, first |
| Synonyms: | avant-garde, brave, experimental, head, inaugural, initial, lead, original, primary, prime |
| Antonyms: | following, last, late, later |
| Main Entry: | practical |
| Part of Speech: | adjective |
| Definition: | realistic, useful |
| Synonyms: | applied, both feet on the ground, businesslike, commonsensical, constructive, doable, down-to-earth, efficient, empirical, experimental, factual, feasible, functional, handy, hard-boiled, implicit, in action, in operation, matter-of-fact, nuts and bolts, operative, orderly, possible, practicable, pragmatic, rational, reasonable, sane, sensible, serviceable, sober, solid, sound, systematic, unidealistic, unromantic, usable, utile, utilitarian, virtual, workable, workaday, working |
| Notes: | practical applies when what is in question is the conduct of affairs, whereas pragmatic applies when the question is the planning with respect to these affairs; practical is anything that can be done and is worth doing, while practicable is anything that can be done - worthwhile or not |
| Antonyms: | impossible, impractical, unfeasible, unrealistic, unserviceable, unworkable, useless, worthless |
| Main Entry: | provisional |
| Part of Speech: | adjective |
| Definition: | contingent, tentative |
| Synonyms: | conditional, dependent, ephemeral, experimental, interim, limited, makeshift, passing, pro tem, provisionary, provisory, qualified, rough-and-ready, stopgap, temporary, test, transient, transitional |
| Antonyms: | certain, definite, permanent |
| Main Entry: | psychedelic |
| Part of Speech: | adjective |
| Definition: | affecting the mind so as to produce vivid visions |
| Synonyms: | consciousness-expanding, crazy*, experimental, freaky, hallucinatory, hallucinogenic, kaleidoscopic, mind-bending, mind-blowing*, mind-changing, mind-expanding, multicolored, psychoactive, psychotomimetic, psychotropic, trip* |
| Antonyms: | normal |
| Main Entry: | psychological |
| Part of Speech: | adjective |
| Definition: | concerning the mind |
| Synonyms: | cerebral, cognitive, emotional, experimental, imaginary, in the mind, intellective, intellectual, mental, psychical, subconscious, subjective, unconscious |
| Antonyms: | body, physical |
| Main Entry: | scientific |
| Part of Speech: | adjective |
| Definition: | systematic; discovered through experimentation |
| Synonyms: | accurate, clear, controlled, deductive, exact, experimental, logical, mathematical, methodical, objective, precise, sound |
| Antonyms: | artistic |