Antonym: overestimate. Similar words: overestimate, estimate, estimated, ultimate, intimate, inestimable, intimately, legitimate. Meaning: [‚ʌndə(r)'estɪmeɪt] 
n. an estimation that is too low; an estimate that is less than the true or actual value. v. 1. assign too low a value to 2. make a deliberately low estimate 3. make too low an estimate of.
n. an estimation that is too low; an estimate that is less than the true or actual value. v. 1. assign too low a value to 2. make a deliberately low estimate 3. make too low an estimate of. 
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1. You shouldn't underestimate his abilities.
2. Never underestimate your power to change yourself!
3. Government figures underestimate the problem.
4. The statistics seriously underestimate the number of people affected.
5. Don't ever underestimate the heart of a champion.
6. Never underestimate your power to change yourself. Never overestimate your power to change others.
7. None of us should ever underestimate the degree of difficulty women face in career advancement.
8. The official figures are a gross underestimate of the true number.
9. We underestimate the destructiveness of war at our peril.
10. 14% may be an underestimate.
11. I underestimate the distance, and am exhausted.
12. You shouldn't underestimate the risks of the enterprise.
12. Sentencedict.com try its best to collect and build good sentences.
13. Clearly £25 was a serious underestimate.
14. Don't underestimate the importance of neat presentation.
15. We often underestimate our potentialities.
16. Never underestimate the power of the press.
17. The worst thing you can do is underestimate an opponent.
18. "Don't underestimate us", Norman Willis warned last year. There was, in the event, little danger of that.
19. Never underestimate what you can learn from a group of like-minded people.
20. Never underestimate your opponent.
21. One shouldn't underestimate the difficulties of getting all the political parties to the conference table.
22. Both underestimate incidence as neither study used glucose challenge.
23. Don't underestimate the importance of captions either.
24. Never underestimate the value of really good training.
25. You must never underestimate how much I love you.
26. Don't underestimate you intuition and gut feelings! Dr T.P.Chia 
27. People often underestimate the importance of training.
28. A Don't underestimate the effects of grief.
29. My guess of 400 proved to be a serious underestimate.
30. The first lesson I learnt as a soldier was never to underestimate the enemy.
More similar words: overestimate, estimate, estimated, ultimate, intimate, inestimable, intimately, legitimate, ultimately, penultimate, plundered, illegitimate, legitimately, interesting, interestingly, compound interest, undergraduate, understatement, nominal interest rate, underground, ultimatum, intimation, antimatter, under, climate, animate, under way, thunder, blunder, plunder.