| adj. |
| [1] |
unperceivable
,
invisible
,
indiscernible
,
indistinguishable
,
undetectable
,
obscure
,
vague
,
ill-defined
,
inaudible
|
| [2] |
indistinct
,
unclear
,
unnoticeable
,
slight
,
subtle
,
inconsiderable
,
inappreciable
,
minute
,
tiny
,
slight
,
minuscule
,
infinitesimal
,
microscopic
|
|
