| levelheaded(adjective, reasonable, keen, sensible, deep) |
| literary(familiar, knowledgeable, informed, experienced, cultured) |
| literate(adjective, familiar, intelligent, knowledgeable, informed) |
| lost in thought(expression, adjective, idiom, reasonable, sober) |
| magnificent |
| masterful(expert, skilled, capable, skillful, adroit) |
| masterly(expert, skilled, polished, capable, skillful) |
| meditative(adjective, reasonable, keen, deep, rational) |
| melancholy(adjective, reasonable, keen, deep, rational) |
| multitalented |
| museful(adjective, reasonable, keen, deep, rational) |
| musing(adjective, reasonable, keen, deep, rational) |
| no dumbbell |
| no dummy(expression, expert, skilled, capable, skillful) |
| no slouch(expression, expert, skilled, capable, skillful) |
| observant(adjective, understanding, cool, keen, sharp) |
| old(adjective, smart, familiar, knowledgeable, practical) |
| on the beam(expression, expert, skilled, capable, skillful) |
| on the inside(expression, sharp, smart, intelligent, clever) |
| on top of(expression, sharp, smart, intelligent, clever) |