Synonym: brutal, cruel, ferocious, raging, savage, vicious, violent, wild. Antonym: gentle, meek, quiet. Similar words: per cent, perceive, perceived, percentage, perception, field, carrier, barrier. Meaning: [fɪrs /fɪəs] 
adj. 1. marked by extreme and violent energy 2. marked by extreme intensity of emotions or convictions; inclined to react violently; fervid 3. ruthless in competition 4. violently agitated and turbulent.
adj. 1. marked by extreme and violent energy 2. marked by extreme intensity of emotions or convictions; inclined to react violently; fervid 3. ruthless in competition 4. violently agitated and turbulent. 
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31. Peter might look a bit fierce, but actually he's fairly harmless.
32. There was fierce hand-to-hand fighting in the streets of the city.
33. This heat is really fierce.
34. What he said met with fierce opposition.
35. The bill was passed despite fierce opposition.
36. The fierce wind raved itself out.
37. There is fierce competition to join the Special Branch.
38. She has published a fierce anti-war polemic.
39. She shaded her eyes against the fierce sun.
40. He's known in racing circles as a fierce competitor.
41. The eagle is riding on the fierce wind.
42. A fierce fight held on steadily a whole day.
43. The chemistry exam was fierce!
44. Both of them had to counter fierce criticism.
45. Their trust was repaid with fierce loyalty.
46. A fierce wind swept through the countryside.
47. She turned round, looking fierce.
48. The fierce lion burst free from the chains.
49. Before long, the dispute degenerated into fierce polemics.
50. They won the order against fierce international competition.
51. The dog gave several fierce barks.
52. The noon sun was fierce.
53. Two fierce griffins guarded the entrance to the castle.
54. There was fierce public opposition to the plan.
55. The young boy was burning with a fierce ambition.
56. He launched a fierce attack on the Democrats.
57. He inspires fierce loyalty in his friends.
58. His directorship has come under fierce attack.
59. A fierce controversy has broken out over the issue.
60. These people take fierce pride in their independence.
More similar words: per cent, perceive, perceived, percentage, perception, field, carrier, barrier, supplier, frontier, force, source, percolate, merchant, enforce, by force, in force, commercial, resource, reinforce, at the mercy of, overcrowded, for certain, under control, enforcement.