1. RATIFY--

Clean

Damage

Cancel

Support

2. OUTSET--

regression

termination

series

exit

3. UNTENABLE--

Unattainble

Indefensible

Withdraw

verify

4. SUSTAINABLE:

transient

maintainable

relevant

useful

5. NOSTALGIC:

Soothing

Homesick

Diseased

Indolent

6. The antonym of 'preserve' is:

protect

secure

measure

ruin

7. DEFICIT:

Defeat

Shotage

Complex

Plan

8. The synonym of 'sanguine' is--

.Cheerful

Careful

Sacred

Sparkle

9. SCARCITY--

abundance

mediocre

little

remote

10. Destroy

Blunder

Demolish

Negative

None of these