Synonyms to keen on

attracted, advancing, approaching, approximate, approximative, attracted to, cathectic, coming, concerned, curious, drawn to, enthusiastic, excited, fascinated, forthcoming, imminent, interested, near, nearing, oncoming, passionate, piqued, proximate, tantalized, tickled, titillated, to come, turned-on, upcoming, aberrant, abnormal, absurd, agape, agog, all agog, analytical, attentive, barmy, bizarre, burning with curiosity, careful, catechistic, cautious, circumspect, considerate, consumed with curiosity, deviant, deviate, eccentric, erratic, examining, exotic, extraordinary, freaked out, freakish, freaky, funny, ghoulish, gossipy, grotesque, heedful, impertinent, inquiring, inquisitional, inquisitive, inquisitorial, interfering, intermeddling, interrogational, interrogative, interrogatory, intrusive, investigative, irregular, itchy, kinky, kooky, loving, meddlesome, meddling, mindful, morbid, morbidly curious, nosy, nuts, nutty, odd, oddball, off, off the wall, offbeat, open-eyed, openmouthed, out, outla