unproven, untried, inexperienced, unknown quantity, unproved, unknown, uncharted, unexplored, ineffective, unseasoned, undefined, unconventional, risky, unheralded, unchartered, unpolished, unfamiliar, unestablished, promising, unmined, unexperienced, undistinguished, unstudied, unorthodox, inconsistent, unquestioned, unreliable, unimpressive, undeveloped, untainted, uncertain, unprotected, callow, unready, unsurveyed, undiscovered, unpredictable, unqualified, chancy, unpromising, unappealing, flawed, experimental, immature, unworkable, unexploited, untapped, unafraid, imprecise, untraditional, prohibitive, assailable, foolhardy, uncapped, intriguing, exploitable, seasoned, inferior, ineffectual, unaccomplished, inefficacious, overburden, untrained, nebulous, obsolescing, daunting, unmapped, unsettled, wary, unexposed, probable, guessable, iffy, brash, metallogenic, unimaginative, uninspiring, tabula rasa, untrustworthy, unwise, obscure, unsuited, shaky, newfangled, undrained, unsophisticated, hamstrung, cocksure, unregulated, enticing, undaunted, clastic, unimagined, devoid, hypogene, questionable, hesitant, unpractical, unformed, vincible, formidable, depleted, testable, outdated, newer, outmoded, priori, untenable, unverifiable, debatable, tenable, incompatible, sophisticated, tested, unscientific, antiquated, axiomatic, conventional

inexperienced, new, unseasoned, untried