1. existing in a high degree; very strong or extreme
2. having or showing very strong feelings, opinions, or thoughts
3. requiring or involving a lot of energy, effort, or concentration

Examples

• The intense heat made it difficult to work outside.
• She felt intense pain in her shoulder after the accident.
• He has an intense personality and takes everything very seriously.
• The students engaged in intense discussion about the novel.
• The athlete underwent intense training for the Olympics.
• The intense colors of the sunset were breathtaking.
• There was intense competition for the scholarship.