← Vocab #2: 21-40 Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All precocious exhibiting unusually early intellectual aptitude or maturity prospectus formal proposal rudimentary basic; elementary; in the earliest stages of development abstruse difficult to understand callous emotionally hardened; unfeeling convoluted intricate; complex disaffected having lost faith or loyalty; discontent enigma a puzzle; a riddle; a mystery inscrutable difficult to fathom or understand; impenetrable reticent inclined to keep silent; reserved staid unemotional; serious arcane known or understood by only a few assimilate to absorb or become absorbed; to make or become similar autonomy independence; self-determination cosmopolitan worldly; widely sophisticated derivative something that comes from another source esoteric intended for or understood by only a small group gaffe a clumsy social error; a faux pas idiosyncrasy a characteristic peculiar to an individual or group insular isolated; narrow