| lacking interest |
| laggard(adjective, awkward, slack, wary, unenthusiastic) |
| lazy(adjective, uncertain, shy, doubtful, hesitant) |
| loner(adjective, modest, nervous, humble, hesitant) |
| loveless |
| lukewarm |
| malcontent(adjective, difficult, awkward, forced, averse) |
| nirvanic |
| not in the mood(expression, adjective, idiom, slow, shy) |
| opposed(adjective, slow, shy, unfriendly, antagonistic) |
| passionless |
| perverse(adjective, difficult, awkward, hostile, hesitant) |
| recalcitrant(adjective, difficult, awkward, wary, unenthusiastic) |
| recessive(adjective, modest, nervous, humble, hesitant) |
| refractory(adjective, difficult, awkward, forced, averse) |
| remiss(adjective, difficult, awkward, counter, unenthusiastic) |
| reserved(adjective, modest, humble, shy, hesitant) |
| resistant(adjective, slow, awkward, shy, forced) |
| retiring(adjective, modest, humble, shy, hesitant) |
| shamefaced(adjective, modest, nervous, humble, hesitant) |