| profound |
| quick learner(characteristic, study) |
| recondite(sound, knowledgeable, cultured, educated, erudite) |
| sapient(sound, knowledgeable, cultured, educated, erudite) |
| scholastic |
| schoolman |
| scientific(sound, knowledgeable, cultured, educated, erudite) |
| sharp(knowledgeable, cultured, educated, erudite, enlightened) |
| sharpie |
| skilled(sound, knowledgeable, cultured, educated, erudite) |
| solemn(sound, knowledgeable, cultured, educated, erudite) |
| solid(sound, knowledgeable, cultured, educated, erudite) |
| sound(knowledgeable, cultured, educated, erudite, enlightened) |
| studied(sound, knowledgeable, cultured, educated, erudite) |
| thinker |
| versed(knowledgeable, cultured, educated, erudite, enlightened) |
| well-educated(knowledgeable, witting, cultured, educated, erudite) |
| well-grounded(sound, knowledgeable, cultured, educated, erudite) |
| well-informed(knowledgeable, cultured, educated, erudite, enlightened) |
| well-read(knowledgeable, cultured, educated, erudite, enlightened) |