| Main Entry: | experimental |
| 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: | insoluble |
| Part of Speech: | adjective |
| Definition: | mysterious, unable to be solved or answered |
Synonyms: |
baffling, difficult, impenetrable, indecipherable, inexplicable, inextricable, irresolvable, mystifying, obscure, unaccountable, unconcluded, unfathomable, unresolved, unsolvable, unsolved |
Antonyms: |
explainable, explicable, obvious, open, solvable |
| Main Entry: | unfinished |
| Part of Speech: | adjective |
| Definition: | not completed |
Synonyms: |
amateurish, bare, crude, cut short, dabbling, defective, deficient, dilettante, faulty, formless, found wanting, fragmentary, half-baked, half-done, immature, imperfect, in the making, in the rough, incomplete, lacking, natural, not done, plain, raw, rough, roughhewn, shapeless, sketchy, tentative, unaccomplished, unadorned, unassembled, uncompleted, unconcluded, under construction, undeveloped, undone, unexecuted, unfashioned, unfulfilled, unperfected, unpolished, unrefined, wanting |
Antonyms: |
completed, finished, polished, refined, whole |
| Main Entry: | unresolved |
| Part of Speech: | adjective |
| Definition: | uncertain; not settled |
Synonyms: |
betwixt and between, changing, doubtful, faltering, hesitant, hesitating, hot and cold, incomplete, indecisive, irresolute, moot, open to question, pending, problematical, pussyfooting, unanswered, unconcluded, undecided, undetermined, unfinished, unsettled, unsolved, up in the air, vacillating, vague, waffling |
Antonyms: |
certain, definite, resolved, settled, solved, sure |
| Main Entry: | undone |
| Part of Speech: | adjective |
| Definition: | not done |
Synonyms: |
incomplete, unaccomplished, uncompleted, unconcluded, unfinished, unperformed |
Antonyms: |
accomplished, completed, done, finished |