1) Avertable 2) Avertible 3) Escapable 4) Evitable 5) Like careless mistakes 6) Needless 7) Not fated 8) Not predestined 9) Preventable 10) Unlike death and taxes 11) Unnecessary 1) Avertable 2) Avertible 3) Evitable 4) Needless 
• (a.) Capable of being vacated; liable to be annulled or made invalid; voidable. • (a.) Capable of being avoided, shunned, or escaped.
A·void'a·ble adjective 1. Capable of being vacated; liable to be annulled or made invalid; voidable. « The charters were not avoidable for the king's nonage. Hale. » 2. Capable of being avoided, shunned, or escaped. 
avoidable 1. Capable of being avoided or warded off. 2. That which may be avoided, left at a distance, shunned, or escaped. 3. Anything which may be vacated; liable to be annulled.