Word for "not trying one's best" or "appearance of little effort"?

I will provide definitions for which I can't think of the word:

  • as though not trying one's best
  • having the appearance of little effort

The word is used to describe something that you look at and think, "They're not really trying."

I remember thinking this is a good vocab word, and darn it, I forgot it. This has been driving me crazy all day.


How about doing something half-heartedly?

without enthusiasm or effort

I half-heartedly joined a gym to get fit.

Or a half-hearted attempt.

Synonyms include:

  • desultory
  • perfunctory
  • cursory

[Oxford]


EDIT: The word the OP was looking for is:

perfunctory

(Of an action) carried out without real interest, feeling, or effort:


How about lackadaisical?

Lacking enthusiasm and determination; carelessly lazy

The effort from the players was lackadaisical at best.


If a metaphoric term would work, consider phoning it in

(informal) Work or perform in a perfunctory or unenthusiastic manner.

Oxford Dictionaries Online