Certainly! Here are definitions for the words you've listed:

1. Ruinous (adj.):

- Definition 1: Causing or likely to cause ruin; destructive or disastrous.

- Definition 2: In a state of decay or disrepair, especially as a result of neglect or destruction.

2. Manifest (adj. & v.):

- Adjective: Clear or obvious to the eye or mind; evident.

- Verb: To display or show (a quality or feeling) by one's acts or appearance; demonstrate.

3. Vital (adj.):

- Definition 1: Absolutely necessary or essential; crucial for life or success.

- Definition 2: Full of energy; lively or animated.

4. Incomprehensible (adj.): Impossible to understand or grasp fully; beyond comprehension.

5. Fugitive (n.): A person who is fleeing, especially from the authorities; someone on the run or in hiding.

6. Perpetual (adj.): Continuing or enduring forever; everlasting or never-ending.

7. Senseless (adj.): Lacking common sense or good judgment; foolish or irrational.

8. Penance (n.): Self-imposed punishment or suffering as an expression of repentance for sins or wrongdoing.

9. Juggernaut (n.): A powerful, overwhelming force or institution that crushes anything in its path; something that demands blind devotion or mercilessly overcomes opposition.

10. Veil (n. & v.):

- Noun: A covering or layer that conceals or obscures something.

- Verb: To cover, hide, or obscure something as if with a veil, often metaphorically.

11. Pulverize (v.): To crush, grind, or pound something into fine particles or powder; to demolish or destroy completely.

12. Melancholy (adj.): A feeling of deep sadness or sorrow; a gloomy or depressed state of mind.

13. Scuttle (v.): To run with short, quick steps, especially due to fear or haste.

14. Trajectory (n.): The path followed by an object moving through space or time; the curve or line described by a moving point.

15. Torrent (n.): A strong and fast-moving stream of water or other liquid; a sudden, violent outpouring of something (e.g., rain, emotions).

16. Cadence (n.): The rhythm, flow, or modulation of sounds or phrases, especially in music or poetry; a rhythmic pattern or sequence.

17. Cacophony (n.): A harsh, discordant mixture of sounds; a jarring, unpleasant noise.

18. Luminescent (adj.): Emitting light that is not caused by heat; glowing or shining, often with a soft light.

19. Retaliate (v.): To respond to an action or injury by inflicting a corresponding harm or injury; to seek revenge or payback.

20. Intuitive (adj.): Based on or using intuition or instinct rather than conscious reasoning; instinctively understood or known.

21. Accentuate (v.): To emphasize or highlight; to make something more noticeable or prominent.

22. Hypocrisy (n.): The practice of claiming to have moral standards or beliefs to which one's own behavior does not conform; the act of pretending to be what one is not.

23. Maneuver (n. & v.):

- Noun: A skillful and strategic movement, often in a physical or tactical sense.

- Verb: To move or manipulate with skill and strategy.

24. Tranquil (adj.): Free from disturbance or agitation; calm and peaceful.

25. Flippant (adj.): Showing a lack of seriousness or respect, especially in a situation that requires attention or sensitivity; frivolous or disrespectful.

26. Behoove (v.): To be necessary, proper, or advantageous for; to befit or be appropriate.

27. Haphazard (adj.): Lacking any obvious principle of organization; random or without a clear plan.

28. Inundate (v.): To overwhelm or flood with an overflowing amount of something; to inundate with a large quantity.

29. Inconspicuous (adj.): Not clearly visible or attracting attention; not easily seen or noticed.

30. Awry (adj.): Away from the appropriate, planned, or expected course; askew or off-kilter.

31. Intermittent (adj.): Occurring at irregular intervals; not continuous or steady.

32. Infrequent (adj.): Not occurring or appearing often; rare or seldom.

33. Ceaseless (adj.): Continuous and unending; without stopping or pausing.

34. Jockeying (v.): Engaging in maneuvering or manipulation to gain an advantage; competing or vying for a better position.

35. Incense (n.): A substance that produces a pleasant aroma when burned; also refers to material used in religious ceremonies for its fragrance.

36. Radiance (n.): The quality or state of being bright, shining, or glowing; a brilliant or dazzling light.

37. Specimen (n.): An individual example of a particular kind of thing; a sample or representative example.

38. Vigilance (n.): Alertness, watchfulness, or attentiveness in detecting and warding off danger or threats; the state of being vigilant.

39. Gesture (n. and v.):

- Noun: A movement or action of the body, usually the hands or arms, to express an idea or feeling.

- Verb: To make a gesture, especially with the hands or body, to convey a message or emotion.

40. Riveting (adj.): Holding the attention or interest completely; fascinating or absorbing.

41. Careen (v.): To move swiftly and in an uncontrolled way, especially while swaying or lurching.

42. Sullen (adj.): Bad-tempered and sulky; gloomy or morose.

43. Burden (n.): A heavy load or something that is carried, often metaphorically referring to responsibilities, worries, or obligations.

44. Heave (v.): To lift or haul with great effort or force; to throw or thrust something heavy with a vigorous movement.

45. Imminent (adj.): About to happen; impending or likely to occur very soon.

46. Serene (adj.): Calm, peaceful, and untroubled; tranquil or undisturbed.

47. Infallible (adj.): Incapable of making mistakes or being wrong; always accurate and reliable.

48. Reiterate (v.): To say or do something repeatedly or often; to repeat something for emphasis or clarity.

49. Descend (v.): To move or go downward; to lower oneself physically, socially, or morally.

50. Uniform (adj.): Unchanging in form, quality, or nature; consistent or constant in character.