For lack of excitement/interest:
Dull
Uninteresting
Lackluster
Lifeless
Drab
For repetitive tasks/situations:
Monotonous
Tedious
Humdrum
Mind-numbing
For everyday/ordinary things:
Mundane
Prosaic
Run-of-the-mill
For lack of excitement/interest:
Dull
Uninteresting
Lackluster
Lifeless
Drab
For repetitive tasks/situations:
Monotonous
Tedious
Humdrum
Mind-numbing
For everyday/ordinary things:
Mundane
Prosaic
Run-of-the-mill