ne; _mourning_ is thought of as prolonged,
_grief_ or _regret_ may be transient. One may _grieve_ or _mourn_,
_regret_, _rue_, or _sorrow_ without a sound; he _bemoans_ with
suppressed and often inarticulate sounds of grief; he _bewails_ with
passionate utterance, whether of inarticulate cries or of spoken words.
He _laments_ in plaintive or pathetic words, as the prophet Jeremiah in
his "Lamentations." One _deplores_ with settled sorrow which may or may
not find relief in words. One is made to _rue_ an act by some misfortune
resulting, or by some penalty or vengeance inflicted because of it. One
_regrets_ a slight misfortune or a hasty word; he _sorrows_ over the
death of a friend.

Antonyms:

be joyful, exult, joy, make merry, rejoice, triumph.

* * * * *

MUTUAL.

Synonyms:

common, correlative, interchangeable, joint, reciprocal.

That is _common_ to which two or more persons have the same or equal
claims, or in which they have equal interest or participation; in the
strictest sense, that is _mutual_ (Latin _mutare_, to change) which is
freely interchanged; that is _reciprocal_ in respect to which one act or
movement is met by a corresponding act or movement in return; we speak
of our _common_ country, _mutual_ affection, _reciprocal_ obligations,
the _reciprocal_ action of cause and effect, where the effect becomes in
turn a cause. Many good writers hold it incorrect to say "a _mutual_
friend," and insist that "a _common_ friend" would be more accurate; but
"_common_ friend" is practically never used, because of the disagreeable
suggestion that attaches to _common_, of ordinary or inferior. "_Mutual_
friend" has high literary authority (of Burke, Scott, Dickens, and
others), and a considerable usage of good society in its favor, the
expression being quite naturally derived from the thoroughly correct
phrase _mutual_ friendship.

Antonyms:

detached, distinct, separated, unconnected, unrequited,
disconnected, disunited, severed, unreciprocated, unshared.
dissociated, separate, sundered,

* * * * *

MYSTERIOUS.

Synonyms:

abstruse, inexplicable, recondite,
cabalistic, inscrutable, secret,
dark, mystic, transcendental,
enigmatical, mystical, unfathomable,
hidden, obscure, unfathomed,
incomprehensible, occult, unkn