prematurity (n.)

• forwardness
• haste
• hastiness
• impropriety
• impulse
• impulsiveness
• inappropriateness
• inauspiciousness
• inconvenience
• inexpedience
• infelicity
• inopportuneness
• interruption
• intrusion
• irrelevance
• lateness
• precipitation
• precociousness
• precocity
• prematureness
• rush
• unfavorableness
• unfitness
• unpropitiousness
• unseasonableness
• unsuitability
• untimeliness
• wrongness