1. Moderately warm
   "tepid bath water"
   - lukewarm 
2. Feeling or showing little interest or enthusiasm
   - halfhearted, half-hearted, lukewarm

See also: tepidness, unenthusiastic, warm

• difference threshold
• different
• differentia
• differentiable
• differential
• differential analyser
• differential analyzer
• differential blood count
• differential calculus
• differential coefficient
• differential cost
• differential diagnosis
• differential equation
• differential gear
• differential limen
• differential psychology
• differential threshold
• differentially
• differentiate
• differentiated
• differentiation
• differentiator
• differently
• difficile
• difficult