| unpresuming(adjective, person, feelings) |
| uptight(adjective, calm, quiet, reasonable, informal) |
| wary(adjective, restrained, modest, humble, hesitant) |
| ambiguous(adjective, obscure, deep, unknown, clandestine) |
| attentive(restrained, hesitant, reserved, cautious, suspicious) |
| averse(adjective, modest, humble, hesitant, suspicious) |
| blank(adjective, unemotional, emotionless, expressionless, inexpressive) |
| ceremonious(adjective, close, quiet, gentle, cold) |
| chary(adjective, restrained, modest, humble, shy) |
| chill(adjective, cool, attitude, indifferent, hot) |
| chilled(calm, quiet, reasonable, mild, controlled) |
| circumspect(adjective, restrained, modest, humble, hesitant) |
| clammed up(expression, adjective, close, quiet, soft) |
| concise |
| confidential(clandestine, underground, undisclosed) |
| constrained(shy, timid, diffident) |
| costive |
| covert(adjective, mysterious, private, taciturn, clandestine) |
| cunning(wary, guarded, concealment) |
| disinclined(adjective, modest, humble, hesitant, suspicious) |