ABSTAIN

• Avoid, with from

• Choose not to choose

• Choose not to participate

• Choose not to vote

• Choose not to vote (or consume alcohol)

• Choose to not participate

• Decline to decide

• Decline to vote

• Fast

• Fast, e.g.

• Forbear

• Go without

• Hold back

• Holdoff

• Just not do it?

• Just say no?

• Keep one's pants on?

• Lay off

• Not raise a hand, say

• Opposite of indulge

• Purposely have no sex life

• Refrain

• Refrain (from)

• Refrain from voting

• Refuse to vote

• Save it for marriage

• Shun the voting booth

• Sit on one's hands?

• Sit out the vote

• Skip voting

• Stay on the wagon

• Teetotal

• Voluntarily refrain

• What a celibate will do

• What the celibate do

• Withhold