uneffusive

afraid apprehensive bashful cautious circumspect coy demure diffident fearful hesitant humble introverted modest nervous reluctant reticent self-effacing sheepish suspicious timid wary

disinclined indisposed introvert loner recessive reserved retiring shrinking

averse backward chary conscious distrustful loath shamefaced skittish unassertive unassured uneager unresponsive unsocial unwilling

aggressive bold brave calm careless conceited confident courageous eager egotistical extroverted fearless forward heedless immodest incautious indiscreet proud rash unabashed unafraid unashamed uncareful unfearful unshy unworried

bent disposed inclined outgoing willing

adequate enough unreserved