Everlasting
Eternal, Perpetual, Timeless (Adjective).
Irrecoverable
Irretrievable, Irrevocable, Lost forever (Adjective).
Engulfed
Inundated, Submerged, Deluged (Adjective).
Exultant
Jubilant, Delighted, Ecstatic (Adjective).
Sumptuous
Lavish, Luxurious, Opulent (Adjective).
Desolation
Melancholy, Bleakness, Depression (Noun).
Tremendous
Enormous, Immense, Stupendous.
Gigantic
Huge, Colossal, Titanic (Adjective).
Intricate
Complicated, Tangled, Labyrinthine (Adjective).
Fathom
Understand, Comprehend (Verb).
Tribulation
Trouble, Adversity, Tragedy (Noun).
Bewildered
Puzzled, Confused (Adjective).
Infinitesimal
Minuscule, Tiny (Adjective).
Ruminate
Contemplate, Consider, Ponder over (Verb). C.f. “The Human Seasons” by John Keats: “He has his Summer, when luxuriously / Spring’s honied cud of youthful thought he loves / To ruminate”.
Contemptible
Despicable, Detestable, Deplorable (Adjective).
Reproachfully
Disapprovingly, Critically (Adverb).
Certitude
Certainty, Conviction (Noun).
Baleful
Menacing, Threatening, Hostile (Adjective).
Entrenchment
Burial, Digging in (Adjective).