of Beam, Emitting beams; radiant.
beaming
Two synonyms for 'grinning' would be 'beaming' and 'smiling'.
The ideal thing is to realize the light was beaming. Ideally you should have realized it was the lighthouse beaming in the fog. Beaming with surprise, Peter began to realize he could be the ideal candidate.
Julia Roberts's face was beaming when she smiled at her daughter.
The child beamed at Santa The ceiling was low-beamed
Beaming
shining, beaming
This is a rather antique word, meaning "beaming" or 'full of light'. "George was positively glowing with refulgent energy." "Oswald was in awe of the refulgent sunset."
Ray
Transwarp beaming
Smiling, beaming
bright, sparkling, glowing